A tower support suitable for lifting and horizontal rotation under the influence of coal mining
Patent Information
- Application Number
- CN202522411694.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-13
AI Technical Summary
特别是在采空区上方及周边进行输电线路建设时，采动引起的地表移动变形极易导致铁塔基础发生差异沉降、倾斜甚至倒塌，严重威胁线路安全
[0007]本方案的有益效果为：通过在混凝土基础和塔脚之间增加液压装置实现基础的竖向调节，结构简单稳定，操作简单，方便现场及时对产生不均匀沉降的铁塔基础进行调节，释放杆塔内内力，避免铁塔结构发生破坏；通过球面板实现混凝土基础与塔脚之间的相对水平转动，可在地表产生水平移动变形时自动进行调节，防止塔脚与混凝土基础之间产生较大的扭转，同时设置了限位槽和L形限位扣，对水平转角进行了限制，避免在正常情况下发生误差让铁塔产生过大的水平转动而导致装置失效。
Smart Images
Figure CN224813578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transmission tower technology, specifically to a tower support that can be raised, lowered, and rotated horizontally under the influence of coal mining. Background Technology
[0002] With the large-scale exploitation of mineral resources and the continuous growth in energy demand, the area of coal mining subsidence zones is constantly expanding, and its impact on the safety of engineering construction is becoming increasingly significant. In particular, when constructing power transmission lines above and around mining subsidence zones, the surface movement and deformation caused by mining can easily lead to differential settlement, tilting, or even collapse of the tower foundations, seriously threatening the safety of the transmission lines.
[0003] In existing technologies, traditional transmission tower supports mostly adopt rigid fixing forms, which lack the ability to adapt to foundation deformation. After uneven settlement occurs, it is often necessary to interrupt the line and carry out manual adjustment or reinforcement, which is complicated, time-consuming, and uneconomical, and cannot cope with the complex surface deformation caused by mining. Although there are some adjustable tower support forms, most of them have limited adjustment capabilities and cannot simultaneously achieve vertical and horizontal position adjustment. Moreover, the adjustment methods are relatively cumbersome, which cannot meet the urgent needs of long-term safe operation of transmission towers located within the impact range of coal mining.
[0004] Therefore, there is an urgent need for a tower support with lifting and horizontal rotation functions, which can be easily and quickly adjusted according to the deformation of the foundation in the goaf, thereby effectively reducing the impact of uneven settlement on the tower structure and improving the adaptability and reliability of the tower under adverse geological conditions in the goaf of coal mines. Utility Model Content
[0005] The present invention aims to provide a tower support that can be raised, lowered, and rotated horizontally under the influence of coal mining, so as to achieve simple and rapid adjustment according to the deformation of the foundation in the goaf, thereby effectively reducing the impact of uneven settlement on the tower structure and improving the adaptability and reliability of the tower under adverse geological conditions in the coal mine goaf.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, comprising an upper support plate and a lower support plate, an auxiliary cylinder body and a main cylinder body disposed within the auxiliary cylinder body between the upper and lower support plates, a lifting column disposed within the main cylinder body, a first oil passage and a lifting assembly disposed on the lower support plate, the lifting assembly being used to transport hydraulic oil from the auxiliary cylinder body to the main cylinder body and drive the lifting column to rise, the first oil passage being used to control the connection or disconnection between the main cylinder body and the auxiliary cylinder body, the top of the lifting column extending out of the main cylinder body and having a rotating assembly installed at the bottom of the upper support plate.
[0007] The beneficial effects of this solution are as follows: By adding a hydraulic device between the concrete foundation and the tower foot, the vertical adjustment of the foundation is achieved. The structure is simple and stable, and the operation is easy. It is convenient to adjust the tower foundation that is experiencing uneven settlement on-site in a timely manner, release the internal forces in the tower, and prevent damage to the tower structure. The relative horizontal rotation between the concrete foundation and the tower foot is achieved through the ball panel. It can automatically adjust when horizontal movement and deformation occur on the ground surface to prevent large torsion between the tower foot and the concrete foundation. At the same time, the limit groove and L-shaped limit buckle are set to limit the horizontal rotation angle, so as to avoid the tower from undergoing excessive horizontal rotation under normal conditions, which would cause the device to fail.
[0008] Furthermore, the auxiliary cylinder body is arranged around the main cylinder body, and both the main cylinder body and the auxiliary cylinder body are cylindrical.
[0009] Furthermore, the lifting assembly includes a pump body and a piston disposed in the pump body. The lower support plate is also provided with a second oil passage and a third oil passage. The second oil passage connects to the bottom of the auxiliary cylinder body and the bottom of the pump body, and the third oil passage connects to the bottom of the main cylinder body and the bottom of the pump body. A lever handle is detachably connected to the top of the piston.
[0010] Furthermore, the second oil passage is equipped with a one-way valve I at its connection with the bottom of the pump body, and the third oil passage is equipped with a one-way valve II at its connection with the bottom of the pump body. The oil outlet of the one-way valve I is connected to the bottom of the pump body, and the oil outlet of the one-way valve II is connected to the third oil passage.
[0011] Furthermore, the rotating assembly includes a spherical panel disposed in the middle of the lower surface of the upper support, a flat polytetrafluoroethylene sliding plate between the spherical panel and the upper support, and a spherical groove for mounting the spherical panel formed by the inward recess of the top of the lifting column in the middle, and a spherical polytetrafluoroethylene sliding plate between the spherical panel and the spherical groove.
[0012] Furthermore, it also includes limiting grooves and L-shaped limiting buckles. There are multiple limiting grooves evenly arranged on the circumferential direction of the top of the lifting column. The lower surface of the upper support is provided with multiple L-shaped limiting buckles corresponding to the multiple limiting grooves on the lifting column. The short side of the L-shaped limiting buckle extends into the limiting groove, and the width of the short side of the L-shaped limiting buckle is smaller than the groove width of the limiting groove.
[0013] Furthermore, the two ends of the first oil passage are connected to the main oil cylinder body and the auxiliary oil cylinder body respectively. An adjusting bolt is provided in the first oil passage, and the adjusting bolt can be driven to control the connection or disconnection between the first oil passage and the auxiliary oil cylinder body.
[0014] Furthermore, the top of the main cylinder body is provided with an opening that allows the lifting column to extend. The opening protrudes radially inward to form a limiting boss, and the bottom of the lifting column protrudes radially outward to form an annular boss. The annular boss and the limiting boss have the same protrusion width. Attached Figure Description
[0015] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a top view of the present invention; Figure 4 for Figure 1 Schematic diagram of section AA; Figure 5 This is a schematic diagram of the L-shaped limiting buckle in this utility model.
[0016] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: upper support plate 1, lower support plate 2, auxiliary cylinder body 3, main cylinder body 4, lifting column 5, first oil passage 6, pump body 7, piston 8, second oil passage 9, third oil passage 10, lever handle 11, one-way valve I 12, one-way valve II 13, ball panel 14, flat PTFE sliding plate 15, spherical groove 16, spherical PTFE sliding plate 17, limiting groove 18, L-shaped limiting buckle 19, adjusting bolt 20, opening 21, limiting boss 22, annular boss 23, sealing ring I 24, sealing ring II 25, hydraulic oil 26. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0019] Example 1 The basic implementation examples are as follows: Figure 1-5 As shown in the attached document Figure 1The diagram shows a type of tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining. It includes an upper support plate 1 and a lower support plate 2. Between the upper support plate 1 and the lower support plate 2, there is an auxiliary cylinder body 3 and a main cylinder body 4 disposed within the auxiliary cylinder body 3. The auxiliary cylinder body 3 is arranged around the main cylinder body 4. Both the main cylinder body 4 and the auxiliary cylinder body 3 are cylindrical. The upper support plate 1 is used to fix and connect to the bottom of the tower leg of the transmission tower. The lower support plate 2 is used to weld and fix the auxiliary cylinder body 3 and the main cylinder body 4 to the foundation embedded parts at the same height. The main cylinder body 4 and the auxiliary cylinder body 3 are coaxially arranged, forming an annular hydraulic oil 26 storage cavity between them (i.e., the position where the auxiliary cylinder body 3 stores hydraulic oil 26).
[0020] The main cylinder body 4 is equipped with a lifting column 5, and the lower support plate 2 is equipped with a first oil passage 6 and a lifting assembly. The lifting assembly is used to transport the hydraulic oil 26 in the auxiliary cylinder body 3 to the main cylinder body 4 and drive the lifting column 5 to rise. The lifting assembly includes a pump body 7 and a piston 8 disposed in the pump body 7. The lower support plate 2 is also equipped with a second oil passage 9 and a third oil passage 10. The second oil passage 9 connects the bottom of the auxiliary cylinder body 3 and the bottom of the pump body 7, and the third oil passage 10 connects the bottom of the main cylinder body 4 and the bottom of the pump body 7. The top of the piston 8 is detachably connected to a lever handle 11, which can be made of high-strength aluminum alloy for easy manual operation. The second oil passage 9 is provided with a one-way valve I 12 at the bottom of the pump body 7, and the third oil passage 10 is provided with a one-way valve II 13 at the bottom of the pump body 7. The oil outlet of the one-way valve I 12 is connected to the bottom of the pump body 7, and the oil outlet of the one-way valve II 13 is connected to the third oil passage 10. As a preferred embodiment, a sealing ring II 25 is provided at the bottom of the piston 8.
[0021] When the height of the lifting column 5 needs to be increased, a lever handle 11 is installed on the top of the piston 8. The piston 8 is pulled by the lever handle 11. When the piston 8 moves upward in the pump body 7, the hydraulic oil 26 in the auxiliary cylinder body 3 is drawn into the pump body 7 through the second oil passage 9 and the one-way valve I in sequence. When the piston 8 moves downward in the pump body 7, the hydraulic oil 26 in the pump body 7 is pressed into the main cylinder body 4 through the one-way valve II 13 and the third oil passage 10 in sequence and drives the lifting column 5 to rise.
[0022] The first oil passage 6 is used to control the connection or disconnection between the main oil cylinder 4 and the auxiliary oil cylinder 3. The two ends of the first oil passage 6 are respectively connected to the main oil cylinder 4 and the auxiliary oil cylinder 3. An adjusting bolt 20 is provided in the first oil passage 6. The adjusting bolt 20 can be driven to control the connection or disconnection between the first oil passage 6 and the auxiliary oil cylinder 3. In a preferred embodiment, the rod of the adjusting bolt 20 is provided with a sealing ring. The first oil passage 6 is provided with a threaded section that mates with the adjusting bolt 20. By rotating the adjusting bolt 20 clockwise or counterclockwise, the connection or disconnection between the first oil passage 6 and the auxiliary oil cylinder 3 can be controlled. Loosening the adjusting bolt 20 connects the first oil passage 6 and the auxiliary oil cylinder 3. The pressure difference between the main oil cylinder 4 and the auxiliary oil cylinder 3 drives the lifting column 5 to press the hydraulic oil 26 in the main oil cylinder 4 into the auxiliary oil cylinder 3. The lifting column 5 moves downward, thereby realizing the descent of the support. When the lifting column 5 descends to the required height, tightening the adjusting bolt 20 disconnects the first oil passage 6 from the auxiliary oil cylinder 3.
[0023] The top of the lifting column 5 extends out of the main cylinder body 4 and is provided with a rotating assembly installed at the bottom of the upper support plate 1, including a ball panel 14 located in the middle of the lower surface of the upper support. A flat polytetrafluoroethylene sliding plate 15 is provided between the ball panel 14 and the upper support. The top of the lifting column 5 is recessed inward in the middle to form a spherical groove 16 for installing the ball panel 14. A spherical polytetrafluoroethylene sliding plate 17 is provided between the ball panel 14 and the spherical groove 16. In a preferred embodiment, both the planar PTFE sliding plate 15 and the spherical PTFE sliding plate 17 are 5mm thick. The dimensions of the planar PTFE sliding plate 15 match the top plane of the spherical panel 14. To reduce frictional resistance during horizontal rotation, the top center of the lifting column 5 is recessed inward to form a spherical groove 16. The radius of curvature of the spherical groove 16 is the same as that of the spherical panel 14. The spherical panel 14 is embedded in the spherical groove 16, and the spherical PTFE sliding plate 17 is laid between the two, fitting against the inner surface of the spherical groove 16 to further reduce the coefficient of rotational friction.
[0024] It also includes limiting grooves 18 and L-shaped limiting buckles 19. Multiple limiting grooves 18 are evenly distributed around the top circumference of the lifting column 5. The lower surface of the upper support is provided with multiple L-shaped limiting buckles 19 corresponding to the multiple limiting grooves 18 on the lifting column 5. The short side of the L-shaped limiting buckle 19 extends into the limiting groove 18, and the width of the short side of the L-shaped limiting buckle 19 is smaller than the width of the groove 18. As a preferred embodiment, see attached... Figure 3 and attached Figure 5As shown, there are four limiting slots 18 and four L-shaped limiting buckles 19. The four limiting slots 18 are set in the front, back, left and right directions of the top of the lifting column 5. The four limiting buckles are set on the lower surface of the upper support and correspond one-to-one with the four limiting slots 18. The short side of the L-shaped limiting buckle 19 extends into the limiting slot 18. The width of the short side of the L-shaped limiting buckle 19 is smaller than the width of the slot 18, ensuring that the upper support plate 1 can rotate horizontally relative to the lifting column 5 at a certain angle, while limiting the radial displacement between the two, so as to avoid errors under normal conditions that cause the tower to rotate too much horizontally and cause the device to fail.
[0025] The top of the main cylinder body 4 is provided with an opening 21 that allows the lifting column 5 to extend. The opening 21 protrudes radially inward to form a limiting boss 22, and the bottom of the lifting column 5 protrudes radially outward to form an annular boss 23. The annular boss 23 and the limiting boss 22 have the same protrusion width. In a preferred embodiment, a sealing ring I 24 is provided between the annular boss 23 and the inner wall of the main cylinder body 4. The annular boss 23 and the limiting boss 22 have the same protrusion width, which can limit the maximum lifting height of the lifting column 5 while limiting the rotation of the lifting column 5. The limiting boss 22 can adopt the same annular structure as the annular boss 23, as shown in the attached figure. Figure 4 As shown, four limiting bosses 22 can also be used, with the four limiting bosses 22 being equally spaced in the front, back, left, and right directions of the opening 21.
[0026] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A lifting and horizontally rotating iron tower support suitable for use under the influence of coal mine mining, characterized in that: It includes an upper support plate and a lower support plate. Between the upper support plate and the lower support plate is a secondary hydraulic cylinder body and a main hydraulic cylinder body housed in the secondary hydraulic cylinder body. A lifting column is housed in the main hydraulic cylinder body. The lower support plate is provided with a first oil passage and a lifting assembly. The lifting assembly is used to transport hydraulic oil from the secondary hydraulic cylinder body to the main hydraulic cylinder body and drive the lifting column to rise. The first oil passage is used to control the connection or disconnection between the main hydraulic cylinder body and the secondary hydraulic cylinder body. The top of the lifting column extends out of the main hydraulic cylinder body and is provided with a rotating assembly installed at the bottom of the upper support plate.
2. The tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 1, is characterized in that: The auxiliary cylinder body is arranged around the main cylinder body, and both the main cylinder body and the auxiliary cylinder body are cylindrical.
3. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 1, is characterized in that: The lifting assembly includes a pump body and a piston disposed in the pump body. The lower support plate is also provided with a second oil passage and a third oil passage. The second oil passage connects to the bottom of the auxiliary cylinder body and the bottom of the pump body, and the third oil passage connects to the bottom of the main cylinder body and the bottom of the pump body. A lever handle is detachably connected to the top of the piston.
4. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 3, is characterized in that: The second oil passage is equipped with a one-way valve I at its connection with the bottom of the pump body, and the third oil passage is equipped with a one-way valve II at its connection with the bottom of the pump body. The oil outlet of the one-way valve I is connected to the bottom of the pump body, and the oil outlet of the one-way valve II is connected to the third oil passage.
5. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 1, is characterized in that: The rotating assembly includes a spherical panel disposed in the middle of the lower surface of the upper support, a flat polytetrafluoroethylene sliding plate between the spherical panel and the upper support, and a spherical groove for mounting the spherical panel formed by the inward recess of the top of the lifting column in the middle, and a spherical polytetrafluoroethylene sliding plate between the spherical panel and the spherical groove.
6. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 5, is characterized in that: It also includes limiting grooves and L-shaped limiting buckles. There are multiple limiting grooves, which are evenly arranged on the circumference of the top of the lifting column. The lower surface of the upper support is provided with multiple L-shaped limiting buckles corresponding to the multiple limiting grooves on the lifting column. The short side of the L-shaped limiting buckle extends into the limiting groove, and the width of the short side of the L-shaped limiting buckle is smaller than the width of the limiting groove.
7. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 1, is characterized in that: The two ends of the first oil passage are connected to the main oil cylinder body and the auxiliary oil cylinder body respectively. An adjusting bolt is provided in the first oil passage. The adjusting bolt can be driven to control the connection or disconnection between the first oil passage and the auxiliary oil cylinder body.
8. A tower support that can be raised, lowered, and rotated horizontally under the influence of coal mine mining, as described in claim 1, is characterized in that: The top of the main cylinder body is provided with an opening that allows the lifting column to extend. The opening protrudes radially inward to form a limiting boss, and the bottom of the lifting column protrudes radially outward to form an annular boss. The annular boss and the limiting boss have the same protrusion width.