Transmission tower structure displacement loading test device

Abstract

The invention relates to the technical field of geological disaster simulation, and discloses a transmission tower structure displacement loading test device which comprises a main body mechanism which comprises a bottom plate, a fixed seat fixedly connected to the top end of the bottom plate, a transmission tower model fixedly connected to the top end of the fixed seat, and a lifting part adaptively mounted at the top end of the bottom plate, the auxiliary mechanism comprises a fixed part adaptively mounted on the outer side of the lifting part, a power part adaptively mounted in the fixed part, and a sliding part adaptively mounted on the outer side of the power part; through the mutual cooperation of the lifting component, the fixed component, the power component and the sliding component, when a simulation settlement experiment needs to be carried out on the power transmission tower model, the column foot of the power transmission tower model can be moved from three mutually perpendicular directions in an all-around manner, so that the settlement characteristics of the power transmission tower under various working conditions can be flexibly simulated; and the device has the characteristics of low cost, multiple functions, simplicity in operation and the like.

Description

Technical Field

[0001] The invention relates to the technical field of simulating geological disasters, and in particular to a transmission tower structure displacement loading test device. Background Art

[0002] The power grid is an important lifeline project, and the transmission tower is an important part of the power transmission and distribution system. With the continuous development of my country's power grid projects, more and more transmission lines are built in areas with poor geological conditions, such as mining subsidence areas and soft soil foundation areas. When the transmission towers in the above areas are located in the surface deformation zone, the tower supports are prone to uneven vertical and horizontal displacement deformation, causing changes in the internal forces of the structure, and even causing tower collapse accidents, which have a great impact and damage on the safety and normal operation of the transmission line. The assessment, prediction and early warning of the safety of the tower structure during the line operation and maintenance stage have important engineering application value.

[0003] The uneven surface deformation displacement loading device is mainly used to simulate the effect of uneven surface settlement in the goaf on the column foot of the transmission tower. The transmission tower model is used to simulate the geometric shape, mechanical properties and force response characteristics of the transmission tower. In terms of uneven surface deformation displacement loading devices, equivalent force loading devices are generally used to achieve this. Although this method is simple and easy, it still cannot accurately control or reproduce the adverse working conditions in actual engineering. The scaled models of transmission towers are mainly full aeroelastic models used for wind tunnel tests, double-degree-of-freedom tower models used for vibration table tests, or scaled-down transmission tower full tower models, etc., which often have difficulties such as high prices and difficulty in satisfying geometric and mechanical similarity relationships. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a transmission tower structure displacement loading test device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a transmission tower structure displacement loading test device, comprising:

[0007] The main body mechanism includes a bottom plate, a fixing seat fixedly connected to the top of the bottom plate, and a transmission tower model fixedly connected to the top of the fixing seat, and a lifting component adapted to be installed on the top of the bottom plate;

[0008] The auxiliary mechanism comprises a fixed component adapted to be installed on the outside of the lifting component, a power component adapted to be installed inside the fixed component, and a sliding component adapted to be installed on the outside of the power component.

[0009] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, the lifting component includes a mounting plate fixedly connected to the top of the base plate, and a fixed wall fixedly connected to the top of the mounting plate.

[0010] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, the lifting component further includes a sliding wall slidably connected to the outside of the fixed wall, and a jack arranged on the outside of the mounting plate.

[0011] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, the fixing component includes a receiving box fixedly connected to the outer side of the sliding wall, and a sliding groove opened inside the receiving box.

[0012] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, the fixing component further includes a limit plate slidably connected to the inside of the slide groove, and a scale provided inside the limit plate.

[0013] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, wherein: the power component includes a motor adapted to be installed outside the accommodation box, and a threaded rod fixedly connected to the output shaft of the motor;

[0014] Wherein, the threaded rod is rotatably connected inside the containing box.

[0015] As a preferred solution of the transmission tower structure displacement loading test device described in the present invention, the sliding component includes a sliding seat slidably connected to the outside of the accommodating box, a first pressure sensor adapted to be installed on the outside of the sliding seat, and a connecting plate adapted to be installed on the outside of the first pressure sensor.

[0016] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, wherein: the sliding component further includes a mounting seat slidably connected to the outside of the accommodation box, and a second pressure sensor arranged inside the mounting seat;

[0017] Wherein, one end of the second pressure sensor is bolted to the outside of the sliding seat, and the other end of the second pressure sensor is bolted to the outside of the mounting seat.

[0018] As a preferred solution of the transmission tower structure displacement loading test device described in the present invention, the sliding component also includes an arc groove opened inside the mounting seat, a limiting boss fixedly connected to the inside of the arc groove, and a matching component adapted to be installed on the outside of the limiting boss.

[0019] As a preferred solution of the transmission tower structure displacement loading test device of the present invention, wherein: the matching component includes a cylinder arranged inside the arc groove, a circular groove opened inside the cylinder, and a convex block fixedly connected to the outside of the cylinder;

[0020] Wherein, the limiting boss is slidably connected to the inside of the circular groove, and the cylinder is threadedly connected to the outside of the threaded rod.

[0021] The beneficial effects of the present invention are as follows: through the mutual cooperation of the lifting component, the fixing component, the power component and the sliding component, when it is necessary to carry out a simulated settlement experiment on the transmission tower model, the column feet of the transmission tower model can be moved in all directions from three mutually perpendicular directions, so that the settlement characteristics of the transmission tower under various working conditions can be flexibly simulated, and it has the characteristics of low cost, diverse functions, simple operation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the lifting component of the present invention.

[0026] Figure 4 It is a schematic diagram of the matching components of the present invention.

[0027] Figure 5 It is a schematic diagram of the sliding component of the present invention.

[0028] Figure 6 It is a schematic diagram of the fixing component of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figure 1 to Figure 3 , which is the first embodiment of the present invention, provides a transmission tower structure displacement loading test device, comprising:

[0035] The main body mechanism 100 includes a base plate 101, a fixing base 102 fixedly connected to the top of the base plate 101, and a transmission tower model 103 fixedly connected to the top of the fixing base 102, and a lifting component 104 adapted to be installed on the top of the base plate 101;

[0036] The auxiliary mechanism 200 includes a fixing component 201 adapted to be installed outside the lifting component 104 , a power component 202 adapted to be installed inside the fixing component 201 , and a sliding component 203 adapted to be installed outside the power component 202 .

[0037] Specifically, the lifting component 104 includes a mounting plate 104 a fixedly connected to the top of the bottom plate 101 , and a fixed wall 104 b fixedly connected to the top of the mounting plate 104 a .

[0038] Furthermore, the lifting component 104 further includes a sliding wall 104c slidably connected to the outside of the fixed wall 104b, and a jack 104d disposed on the outside of the mounting plate 104a.

[0039] When in use, the fixing component 201 can be driven to move up and down by the jack 104d. During the movement of the fixing component 201, the sliding wall 104c will move up and down along the fixing wall 104b.

[0040] When the fixing component 201 is driven to move up and down by the jack 104d, the column foot of the transmission tower model 103 will move up and down, thereby simulating the longitudinal settlement of the transmission tower.

[0041] Example 2

[0042] Reference Figure 1 to Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a working process of an auxiliary mechanism 200 is provided.

[0043] Furthermore, the fixing component 201 includes a receiving box 201a fixedly connected to the outer side of the sliding wall 104c, and a sliding groove 201b opened inside the receiving box 201a.

[0044] Furthermore, the fixing component 201 further includes a limiting plate 201c slidably connected to the inside of the slide groove 201b, and a scale 201d opened inside the limiting plate 201c.

[0045] Specifically, the power component 202 includes a motor 202a adapted to be installed outside the containing box 201a, and a threaded rod 202b fixedly connected to the output shaft of the motor 202a;

[0046] The threaded rod 202b is rotatably connected inside the containing box 201a.

[0047] More specifically, the sliding component 203 includes a sliding seat 203a slidably connected to the outside of the containing box 201a, a first pressure sensor 203b adapted to be installed on the outside of the sliding seat 203a, and a connecting plate 203c adapted to be installed on the outside of the first pressure sensor 203b.

[0048] It should be noted that the sliding component 203 further includes a mounting seat 203d slidably connected to the outside of the containing box 201a, and a second pressure sensor 203e disposed inside the mounting seat 203d;

[0049] One end of the second pressure sensor 203e is bolted to the outside of the sliding seat 203a, and the other end of the second pressure sensor 203e is bolted to the outside of the mounting seat 203d.

[0050] In addition, the sliding component 203 also includes an arc groove 203f provided inside the mounting seat 203d, a limiting boss 203g fixedly connected inside the arc groove 203f, and a matching component 203h adapted to be installed outside the limiting boss 203g.

[0051] Finally, the matching component 203h includes a cylinder 203h-1 disposed inside the arc groove 203f, a circular groove 203h-2 opened inside the cylinder 203h-1, and a protrusion 203h-3 fixedly connected to the outer side of the cylinder 203h-1;

[0052] The limiting boss 203g is slidably connected inside the circular groove 203h-2, and the cylinder 203h-1 is threadedly connected to the outside of the threaded rod 202b.

[0053] When it is necessary to simulate the settlement of the transmission tower in the horizontal direction, the motor 202a can be started to drive the threaded rod 202b to rotate.

[0054] When the cylinder 203h-1 is not restricted, the rotation of the threaded rod 202b will drive the cylinder 203h-1 to rotate.

[0055] When the cylinder 203h-1 rotates until the protrusion 203h-3 contacts the limit plate 201c, it cannot continue to rotate due to the obstruction of the limit plate 201c, so that the cylinder 203h-1 is limited. At this time, the threaded rod 202b continues to rotate, causing the cylinder 203h-1 to translate along the axis of the threaded rod 202b.

[0056] When the cylinder 203h-1 translates, it drives the mounting seat 203d to translate outside the containing box 201a, thereby driving the slide 203a to move through the second pressure sensor 203e bolted to the mounting seat 203d, thereby simulating the horizontal displacement of the transmission tower column foot.

[0057] In addition, as shown in the appendix 6, the left limit plate 201c is pulled out from the slide groove 201b for a distance. The distance the limit plate 201c is pulled out can be obtained according to the scale 201d, and the length of the limit plate 201c inside the containing box 201a can be easily obtained.

[0058] From the attached Figure 6 Looking from the left side to the right side, the threaded rod 202b drives the cylinder 203h-1 to rotate counterclockwise. When the cylinder 203h-1 rotates until the protrusion 203h-3 contacts the top of the limit plate 201c, the cylinder 203h-1 can no longer rotate counterclockwise. At this time, the threaded rod 202b continues to rotate counterclockwise and rotates relative to the cylinder 203h-1.

[0059] If the threaded rod 202b is limited to rotate counterclockwise relative to the cylinder 203h-1, the cylinder 203h-1 will move to the right. Figure 6As shown, after the cylinder 203h-1 moves a certain distance to the right, the protrusion 203h-3 will separate from the limit plate 201c. At this time, the cylinder 203h-1 loses the limit again, so that the cylinder 203h-1 rotates synchronously with the threaded rod 202b. At this time, the mounting seat 203d will no longer move, that is, the slide 203a connected to the mounting seat 203d by bolts at both ends of the second pressure sensor 203e will no longer move. When the staff observes that the slide 203a no longer moves, it can be understood that the cylinder 203h-1 has moved to the end position of the limit plate 201c inside the containing box 201a. The motor 202a can be stopped immediately, and the moving length of the slide 203a can be obtained according to the scale 201d.

[0060] It is worth noting that, starting from the moment when the slide 203a stops moving, when the threaded rod 202b continues to drive the cylinder 203h-1 to rotate half a circle, the protrusion 203h-3 will contact the bottom end of the right limit plate 201c, thereby continuing to be limited, allowing the slide 203a to continue to move forward. Therefore, the staff needs to stop the motor 202a within the time taken for the threaded rod 202b to rotate half a circle when observing that the slide 203a stops moving. The method of stopping the motor 202a within the time taken for the threaded rod 202b to rotate half a circle can provide the staff with sufficient reaction time to stop the motor 202a.

[0061] Compared with the method of using a displacement sensor to detect the displacement distance of the slide 203a, the method of stopping the motor 202a at the moment when the slide 203a moves to the specified simulated settlement distance provides workers with reaction time, thereby reducing the difficulty of operation for the workers and improving the accuracy of the simulation experiment.

[0062] In addition, if a displacement sensor is used to detect the displacement distance of the slide 203a, and an encoder is used to control the start and stop of the motor 202a, although the motor 202a can also be stopped at the moment the slide 203a moves to the specified simulated settlement distance, this simulation device is set at the three transmission tower column feet, and there are two sets of auxiliary mechanisms 200 in the horizontal direction of each column foot, and the two sets of auxiliary mechanisms 200 are perpendicular to each other, that is, each column foot requires two displacement sensors, and the two motors 202a of each column foot need to be controlled by an encoder. A total of six displacement sensors and six encoders control six motors 202a. The device is relatively complex, uses more electrical components, and has a high cost, which is contrary to the original intention of this device to reduce the cost.

[0063] Example 3

[0064] Reference Figure 1 to Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it provides other effects of the auxiliary mechanism 200.

[0065] As attached Figure 6 As shown, there are two limit plates 201c in the containing box 201a. The purpose of using two limit plates 201c is:

[0066] First, if only one limit plate 201c is used, when the protrusion 203h-3 rotates to separate from the limit plate 201c, no matter how long the motor 202a drives the threaded rod 202b to rotate, the cylinder 203h-1 will not move, which can provide the staff with more sufficient time to turn off the motor 202a. However, in actual use, the staff often does not need too much time to turn off the motor 202a. The time taken for the threaded rod 202b to rotate half a circle is sufficient for the staff to complete the closing operation.

[0067] In addition, when conducting a settlement simulation experiment on the transmission tower model 103, it is often necessary to collect different data at different positions. Therefore, the column feet of the transmission tower model 103 often need to be moved back and forth frequently. The use of two limit plates 201c allows the staff to have more flexible choices when moving the limit plates 201c to meet the forward and backward movement of the column feet of the transmission tower model 103.

[0068] For example, after the cylinder 203h-1 is moved rightward and separated from the limiting plate 201c, if the next group of experiments requires the cylinder 203h-1 to continue to move rightward, if there is only one limiting plate 201c on the left side, only the left limiting plate 201c can be moved, and if there are two limiting plates 201c, the right limiting plate 201c can be directly moved to make the protrusion 203h-3 contact the bottom end of the right limiting plate 201c for limiting, or after the right limiting plate 201c is pulled out, the left limiting plate 201c can be moved to make the protrusion 203h-3 contact the top end of the left limiting plate 201c for limiting. Therefore, the use of two limiting plates 201c can provide more flexible and diverse options, and the staff can make choices based on factors such as whether the reading position is convenient, how many degrees the protrusion 203h-3 rotates to contact the limiting plate 201c for limiting, etc.

[0069] In addition, if there is only one limit plate 201c on the left side, when the protrusion 203h-3 is in the vicinity Figure 6 When the cylinder 203h-1 is in the position shown and needs to be moved to the left, the threaded rod 202b needs to be rotated clockwise more than 180 degrees to contact and limit the bottom end of the left limit plate 201c, which is time-consuming. If there are two limit plates 201c, the right limit plate 201c can be moved directly, and the threaded rod 202b can be rotated clockwise less than 180 degrees. The device has a faster response time and higher efficiency.

[0070] Finally, if there is only one limit plate 201c, after the protrusion 203h-3 separates from the limit plate 201c, it can be rotated to any angle and then the motor 202a can be stopped. At this time, the protrusion 203h-3 may stop just in front of the limit plate 201c after rotating one or more circles. At this time, if the limit plate 201c needs to be moved further, it will be blocked by the protrusion 203h-3. Therefore, it is necessary to start the motor 202a to rotate the cylinder 203h-1 until the protrusion 203h-3 no longer blocks the limit plate 201c before the limit plate 201c can be moved. The present invention adopts two limit plates 201c. Therefore, in the process of stopping the motor 202a within half a rotation of the threaded rod 202b, the protrusion 203h-3 will block the limit plate 201c only within a short period of time when the protrusion 203h-3 has just separated from the limit plate 201c. Firstly, the blocking range is small. Secondly, the period of time when the protrusion 203h-3 has just separated from the limit plate 201c is a period of time when the staff just observes that the mounting seat 203d and the slide seat 203a stop moving, that is, the time from the staff's observation to the reaction and then to the turning off of the motor 202a. This period of time is the time range in which the protrusion 203h-3 is least likely to stop under normal circumstances in the entire half-rotation time. Therefore, the situation where the protrusion 203h-3 affects the movement of the limit plate 201c is almost non-existent.

[0071] In summary, through the mutual cooperation of the lifting component 104, the fixing component 201, the power component 202 and the sliding component 203, it can be achieved that when it is necessary to conduct a simulated settlement experiment on the transmission tower model 103, the column feet of the transmission tower model 103 can be moved in all directions from three mutually perpendicular directions, so that the settlement characteristics of the transmission tower under various working conditions can be flexibly simulated, and it has the characteristics of low cost, diverse functions, and simple operation.

[0072] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0073] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A transmission tower structure displacement loading test device, characterized in that: include, A main body mechanism (100) comprises a base plate (101), a fixing seat (102) fixedly connected to the top of the base plate (101), and a transmission tower model (103) fixedly connected to the top of the fixing seat (102), and a lifting component (104) adapted to be installed on the top of the base plate (101); The auxiliary mechanism (200) comprises a fixing component (201) adapted to be installed outside the lifting component (104), a power component (202) adapted to be installed inside the fixing component (201), and a sliding component (203) adapted to be installed outside the power component (202).

2. The transmission tower structure displacement loading test device according to claim 1 is characterized in that: The lifting component (104) comprises a mounting plate (104a) fixedly connected to the top end of the base plate (101), and a fixed wall (104b) fixedly connected to the top end of the mounting plate (104a).

3. The transmission tower structure displacement loading test device according to claim 2 is characterized in that: The lifting component (104) further comprises a sliding wall (104c) slidably connected to the outside of the fixed wall (104b), and a jack (104d) arranged on the outside of the mounting plate (104a).

4. The transmission tower structure displacement loading test device according to claim 3 is characterized in that: The fixing component (201) comprises a containing box (201a) fixedly connected to the outside of the sliding wall (104c), and a sliding groove (201b) provided inside the containing box (201a).

5. The transmission tower structure displacement loading test device according to claim 4 is characterized in that: The fixing component (201) further comprises a limiting plate (201c) slidably connected to the interior of the sliding groove (201b), and a scale (201d) provided inside the limiting plate (201c).

6. The transmission tower structure displacement loading test device according to claim 4 or 5, characterized in that: The power component (202) comprises a motor (202a) adapted to be mounted outside the containing box (201a), and a threaded rod (202b) fixedly connected to an output shaft of the motor (202a); Wherein, the threaded rod (202b) is rotatably connected inside the containing box (201a).

7. The transmission tower structure displacement loading test device according to claim 6, characterized in that: The sliding component (203) comprises a sliding seat (203a) slidably connected to the outside of the containing box (201a), a first pressure sensor (203b) adapted to be installed on the outside of the sliding seat (203a), and a connecting plate (203c) adapted to be installed on the outside of the first pressure sensor (203b).

8. The transmission tower structure displacement loading test device according to claim 7 is characterized in that: The sliding component (203) further comprises a mounting seat (203d) slidably connected to the outside of the containing box (201a), and a second pressure sensor (203e) arranged inside the mounting seat (203d); One end of the second pressure sensor (203e) is bolted to the outside of the slide seat (203a), and the other end of the second pressure sensor (203e) is bolted to the outside of the mounting seat (203d).

9. The transmission tower structure displacement loading test device according to claim 8, characterized in that: The sliding component (203) also includes an arc groove (203f) provided inside the mounting seat (203d), a limiting boss (203g) fixedly connected inside the arc groove (203f), and a matching component (203h) adapted to be mounted on the outside of the limiting boss (203g).

10. The transmission tower structure displacement loading test device according to claim 9, characterized in that: The matching component (203h) comprises a cylinder (203h-1) arranged inside the arc groove (203f), a circular groove (203h-2) opened inside the cylinder (203h-1), and a convex block (203h-3) fixedly connected to the outside of the cylinder (203h-1); The limiting boss (203g) is slidably connected to the inside of the circular groove (203h-2), and the cylinder (203h-1) is threadedly connected to the outside of the threaded rod (202b).

Images