A lifting and rotating device

Abstract

This utility model relates to the field of gas conveying technology. It discloses a lifting and rotating device, including a lifting assembly, a rotating arm assembly, a rotating assembly, and a lifting cover. The rotating arm assembly is located on the right side of the lifting assembly, and the rotating assembly is installed at the bottom of the rotating arm assembly. Through the combination of these components, this utility model ensures that the weight of the lifting cover is fully supported by two thrust ball bearings. This significantly reduces the problem of conventional lifting eye bolts being unable to lift the cover due to its excessive weight. It also solves the problem in existing technologies where conventional distribution devices typically use a fixed-angle guide structure, making it difficult to dynamically adjust the material flow direction, leading to material accumulation or distribution deviation.

Description

Technical Field

[0001] This utility model belongs to the field of gas conveying technology, and in particular relates to a lifting and rotating device. Background Technology

[0002] Gas transportation refers to the transfer of gas from one place to another through equipment such as pipelines, pumps, or compressors. It is widely used in industrial, energy supply, chemical production, and civil fields. Its core lies in using pressure difference to drive gas flow, while relying on sealed pipeline systems to prevent leakage. Key equipment includes compressors, valves, pressure regulators, and gas storage tanks. Safety measures need to be designed according to the properties of the gas (such as flammability and corrosiveness) and the transportation distance. For example, long-distance natural gas pipelines use high-strength steel materials and real-time monitoring technology to ensure efficient, stable, and safe energy transmission.

[0003] In nitrogen conveying systems, when materials are distributed from a single pipeline to multiple chambers, uneven distribution often leads to decreased production efficiency or product quality issues. The problem with the aforementioned technology is that conventional distribution devices in existing technologies typically employ a fixed-angle guide structure, making it difficult to dynamically adjust the material flow direction, resulting in material accumulation or distribution deviation. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a lifting and rotating device that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a lifting and rotating device includes a lifting assembly, a rotating arm assembly, a rotating assembly, and a lifting cover. The rotating arm assembly is located on the right side of the lifting assembly, and the rotating assembly is installed at the bottom of the rotating arm assembly.

[0006] The lifting assembly includes a lifting eye screw, a screw sleeve, a first bearing housing, a first thrust ball bearing, a key, a first locking nut, and a handwheel. The lifting eye screw has a mounting hole at its bottom and is threaded to the screw sleeve. The first thrust ball bearing is connected to the bearing positions at the top and bottom of the first bearing housing. Both the lifting eye screw and the screw sleeve are installed within the inner cavities of the first bearing housing and the first thrust ball bearing. The handwheel is connected to the screw sleeve via a key and is fixedly connected to the screw sleeve via the first locking nut.

[0007] The lifting assembly is used to lift the cover;

[0008] The swing arm assembly is used to support the lifting cover;

[0009] The rotating assembly is used to rotate the cover.

[0010] Preferably, in this invention, the rotating arm assembly includes a connecting sleeve and a rotating arm, one end of the connecting sleeve extends to the rotating arm, and the other end of the connecting sleeve extends to the first bearing seat. The two ends of the connecting sleeve are connected to the rotating arm and the first bearing seat by welding.

[0011] Preferably, the rotating assembly of this utility model includes a rotating shaft, a first deep groove ball bearing, a first retaining ring, a second thrust ball bearing, a second bearing housing, a second locking nut, a second retaining ring, and a second deep groove ball bearing. The second thrust ball bearing, the first retaining ring, and the first deep groove ball bearing are sequentially installed on the top of the inner cavity of the second bearing housing. The second deep groove ball bearing, the rotating shaft, the second retaining ring, and the second locking nut are sequentially installed on the bottom of the inner cavity of the second bearing housing. The rotating arm is sleeved on the surface of the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the combination of various parts, ensures that the weight of the lifting cover is fully attached to two thrust ball bearings. The thrust ball bearings greatly reduce the problem of conventional lifting eye bolts being unable to lift due to the excessive weight of the lifting cover. This solves the problem in the prior art where conventional distribution devices typically use a fixed-angle guide structure, making it difficult to dynamically adjust the material flow direction, leading to material accumulation or distribution deviation. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model.

[0015] In the diagram: 101, eye bolt; 102, bolt sleeve; 103, first bearing housing; 104, first thrust ball bearing; 105, key; 106, first lock nut; 107, handwheel; 201, connecting sleeve; 202, rotating arm; 301, rotating shaft; 302, first deep groove ball bearing; 303, first retaining ring; 304, second thrust ball bearing; 305, second bearing housing; 306, second lock nut; 307, second retaining ring; 308, second deep groove ball bearing. Detailed Implementation

[0016] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0017] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] like Figure 1 As shown, the present invention provides a lifting and rotating device, including a lifting assembly, a rotating arm 202 assembly, a rotating assembly, and a cover. The rotating arm 202 assembly is located on the right side of the lifting assembly, and the rotating assembly is installed at the bottom of the rotating arm 202 assembly.

[0019] The lifting assembly includes a lifting eye screw 101, a screw sleeve 102, a first bearing housing 103, a first thrust ball bearing 104, a key 105, a first locking nut 106, and a handwheel 107. The lifting eye screw 101 has a mounting hole at its bottom and is threaded to the screw sleeve 102. The first thrust ball bearing 104 is connected to the bearing positions at the top and bottom of the first bearing housing. Both the lifting eye screw 101 and the screw sleeve 102 are installed within the cavities of the first bearing housing 103 and the first thrust ball bearing 104. The handwheel 107 is connected to the screw sleeve 102 via the key 105 and is fixedly connected to the screw sleeve 102 via the first locking nut 106.

[0020] The lifting assembly is used to lift the cover;

[0021] The swing arm 202 assembly is used to support the lifting cover;

[0022] The rotating assembly is used to rotate the cover;

[0023] Its connection method is simple and easy to install. It can withstand large lifting pressure, and the trapezoidal thread (Tr) has high load-bearing capacity and good self-locking properties, which can prevent the thread from reversing and loosening due to vibration and other reasons. The lifting eye screw 101 can be selected with different specifications of trapezoidal thread (Tr) according to the lifting weight. The outer shaft surface of the screw sleeve 102 needs to be precision machined and assembled with the first thrust ball bearing 104 and the second thrust ball bearing 304. The outer shaft surface of the screw sleeve 102 is machined with a key 105 groove, which is used to connect the handwheel 107 and the screw sleeve 102. The end of the screw sleeve 102 shaft is threaded to match the lock nut for locking the assembly between the screw sleeve 102, handwheel 107, first thrust ball bearing 104, and first bearing seat 103, making them a whole. At the same time, a section of round steel (round tube) is welded to the outside of the first bearing seat 103, and the mounting surfaces of the first thrust ball bearing 104 are machined on the upper and lower sides. After overall machining, it is polished.

[0024] The rotating arm 202 assembly includes a connecting sleeve 201 and a rotating arm 202. One end of the connecting sleeve 201 extends into the rotating arm 202, and the other end extends into the first bearing seat 103. Both ends of the connecting sleeve 201 are welded to the rotating arm 202 and the first bearing seat 103. The rotating arm 202 can be made from a round tube or a bent round tube, depending on the weight of the object being lifted. When using a round tube, support ribs can be added to the bent portion for reinforcement. A thick-walled tube is also welded to the bottom of the rotating arm 202. The inner diameter of the thick-walled tube needs to be machined to achieve a transition fit with the outer diameter of the rotating shaft 301. The height and length of the rotating arm 202 assembly need to be adjusted according to the diameter of the connecting cylinder and the welding position.

[0025] The rotating assembly includes a rotating shaft 301, a first deep groove ball bearing 302, a first retaining ring 303, a second thrust ball bearing 304, a second bearing housing 305, a second locking nut 306, a second retaining ring 307, and a second deep groove ball bearing 308. The second thrust ball bearing 304, the first retaining ring 303, and the first deep groove ball bearing 302 are sequentially installed on the top of the inner cavity of the second bearing housing 305. The second deep groove ball bearing 308, the rotating shaft 301, the second retaining ring 307, and the second locking nut 306 are sequentially installed on the bottom of the inner cavity of the second bearing housing 305. The rotating arm 202 is sleeved on the surface of the rotating shaft 301.

[0026] A connecting stiffener is used for welding the side of the bearing housing in the rotating assembly. This connecting stiffener can be welded to the upper tube box shell of the heat exchanger, the filter shell, the flange of the manhole, or the manhole shell. The second bearing housing 305 has a machined step for mounting the first deep groove ball bearing 302, the second thrust ball bearing 304, and the first deep groove ball bearing 302. The thrust ball bearing is first installed inside the upper part of the second bearing housing 305, then the retaining ring is installed, and then the second deep groove ball bearing 308 is installed. The second deep groove ball bearing 308 is installed in the lower step of the bearing housing. The rotating shaft 301 is installed into the second bearing housing 305 from above. The corresponding dimensions of the rotating shaft 301 need to be precision machined to match the bearings. The lower part of the rotating shaft 301 is machined with threads to match the second locking nut 306 and the second retaining ring 307. The locking nut is used to fix the entire rotating assembly. The upper part of the rotating shaft 301 is machined to transition fit with the thick-walled tube inner hole of the rotating arm 202 to machine its shaft diameter. The insertion length of the rotating shaft 301 also matches the lower part of the rotating arm 202 to enable stable rotation.

[0027] The working principle of this utility model:

[0028] During use, when the handwheel 107 is rotated, the weight of the lifting cover is fully supported by the two thrust ball bearings through the combination of various parts. The thrust ball bearings greatly reduce the situation where the conventional lifting eye bolts cannot be lifted due to the excessive weight of the lifting cover. The rotating assembly uses two deep groove ball bearings on the upper and lower bearing housings for axial positioning of the rotating shaft 301. The thrust ball bearings are mainly used for bearing the weight of the lifting cover, and at the same time, they cooperate with the deep groove ball bearings and retaining rings to radially position the rotating shaft 301, ensuring that the rotating assembly can work normally. The rotating assembly and the rotating arm 202 assembly are assembled with transition fit tolerances to prevent the rotating arm 202 from falling off.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A lifting and rotating device, comprising a lifting assembly, a rotating arm assembly, a rotating assembly, and a lifting cover, characterized in that: The boom assembly is located to the right of the lifting assembly, and the rotating assembly is mounted at the bottom of the boom assembly; The lifting assembly includes a lifting eye screw (101), a screw sleeve (102), a first bearing housing (103), a first thrust ball bearing (104), a key (105), a first locking nut (106), and a handwheel (107). The lifting eye screw (101) has a mounting hole at its bottom and is connected to the screw sleeve (102) by threads. The first thrust ball bearing (104) is connected to the bearing positions at the top and bottom of the first bearing housing. The lifting eye screw (101) and the screw sleeve (102) are both installed in the inner cavities of the first bearing housing (103) and the first thrust ball bearing (104). The handwheel (107) is connected to the screw sleeve (102) by the key (105) and is fixedly connected to the screw sleeve (102) by the first locking nut (106). The lifting assembly is used to lift the cover; The swing arm assembly is used to support the lifting cover; The rotating assembly is used to rotate the cover.

2. The lifting and rotating device as described in claim 1, characterized in that: The swing arm assembly includes a connecting sleeve (201) and a swing arm (202). One end of the connecting sleeve (201) extends to the swing arm (202), and the other end of the connecting sleeve (201) extends to the first bearing seat (103). Both ends of the connecting sleeve (201) are connected to the swing arm (202) and the first bearing seat (103) by welding.

3. The lifting and rotating device as described in claim 2, characterized in that: The rotating assembly includes a rotating shaft (301), a first deep groove ball bearing (302), a first retaining ring (303), a second thrust ball bearing (304), a second bearing housing (305), a second locking nut (306), a second retaining ring (307), and a second deep groove ball bearing (308). The second thrust ball bearing (304), the first retaining ring (303), and the first deep groove ball bearing (302) are sequentially installed on the top of the inner cavity of the second bearing housing (305). The second deep groove ball bearing (308), the rotating shaft (301), the second retaining ring (307), and the second locking nut (306) are sequentially installed on the bottom of the inner cavity of the second bearing housing (305). The rotating arm (202) is sleeved on the surface of the rotating shaft (301).

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