Non-uniform displacement test device suitable for power transmission tower

Abstract

The invention relates to the technical field of geological disaster simulation, and discloses a non-uniform displacement test device suitable for a power transmission tower, and the device comprises a main body mechanism which comprises a bottom plate, a fixed frame fixedly connected to the outer side of the bottom plate, and a model part and a displacement mechanism which are adaptively installed on the outer side of the fixed frame. The weighing component comprises a weighing plate fixedly connected to the outer side of the bottom plate, a sliding component adaptively mounted on the outer side of the weighing plate, and a supporting component adaptively mounted on the outer side of the sliding component; through mutual cooperation of all the parts, height calibration of the three displacement mechanisms in the vertical direction can be easily completed only by starting the motor until the supporting plate does not ascend or descend when a transmission tower model is installed, and after installation is completed, the limiting arms return to the vertical grooves again by tightening the bolts, so that operation is convenient, and the efficiency is high. Workers can be reminded to pay attention to bolt tightening at any time, so that potential safety hazards are eliminated, and the accuracy of experimental data is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of simulating geological disasters, and in particular to an uneven displacement test device suitable for a transmission tower. 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, soft soil foundation areas, etc. When the transmission towers in the above-mentioned 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 lines.

[0003] The assessment, prediction and early warning of the safety of tower structures during the line operation and maintenance stage have important engineering application value. Therefore, it is necessary to conduct simulation experiments on the settlement of the transmission tower column base in order to predict the impact of geological disasters on the transmission tower during actual use. 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 non-uniform displacement test device suitable for transmission towers.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a non-uniform displacement test device suitable for transmission towers, comprising:

[0007] The main body mechanism comprises a bottom plate, a fixing frame fixedly connected to the outside of the bottom plate, and a model component adapted to be installed on the outside of the fixing frame;

[0008] The displacement mechanism includes a weighing plate fixedly connected to the outside of the base plate, a sliding component adapted to be installed on the outside of the weighing plate, a supporting component adapted to be installed on the outside of the sliding component, a lifting component adapted to be installed inside the supporting component, and an auxiliary component adapted to be installed inside the supporting component.

[0009] As a preferred solution of the uneven displacement test device for power transmission towers of the present invention, the model component includes a connecting plate arranged outside the fixing frame, a power transmission tower model fixedly connected to the outside of the connecting plate, and a bolt threadedly connected to the inside of the connecting plate;

[0010] Wherein, the fixing frame and the connecting plate are connected by the bolts.

[0011] As a preferred solution of the uneven displacement test device for transmission towers described in the present invention, the sliding component includes a slide plate slidably connected to the outside of the weighing plate, and a hydraulic push rod adapted to be installed on the outside of the weighing plate.

[0012] As a preferred solution of the uneven displacement test device for transmission towers of the present invention, the sliding component further comprises a transition plate slidably connected to the outside of the weighing plate, and a force sensor arranged on the outside of the transition plate;

[0013] Among them, one end of the force sensor is bolted to the outside of the slide plate, and the other end of the force sensor is bolted to the outside of the transition plate, and the transition plate is adapted to be installed at the output end of the hydraulic push rod.

[0014] As a preferred solution of the uneven displacement test device suitable for transmission towers described in the present invention, the support component includes a support block fixedly connected to the outside of the slide plate, a vertical groove opened inside the support block, and an annular groove opened inside the support block.

[0015] As a preferred solution of the uneven displacement test device suitable for transmission towers described in the present invention, the support component also includes an arc groove opened inside the support block, a limit rod slidably connected to the inside of the support block, and a support plate fixedly connected to the outside of the limit rod.

[0016] As a preferred solution of the uneven displacement test device for transmission towers described in the present invention, the lifting component includes a motor adapted to be installed inside the slide plate, and a screw fixedly connected to the output end of the motor.

[0017] As a preferred solution of the uneven displacement test device suitable for transmission towers described in the present invention, the lifting component also includes a sleeve threadedly connected to the outside of the screw rod, a limit arm fixedly connected to the outside of the sleeve, and a first arc surface opened inside the limit arm.

[0018] As a preferred solution of the uneven displacement test device for transmission towers of the present invention, the auxiliary component includes an arc plate arranged inside the arc groove, a second arc surface opened outside the arc plate, and a connecting rod fixedly connected to the outside of the arc groove;

[0019] Wherein, the connecting rod is slidably connected inside the supporting block.

[0020] As a preferred solution of the uneven displacement test device for transmission towers of the present invention, the auxiliary component further includes an outer cylinder slidably connected to the outside of the connecting rod, and a spring arranged inside the outer cylinder.

[0021] The beneficial effects of the present invention are as follows: through the mutual cooperation of various components, when installing the transmission tower model, it is possible to easily complete the height calibration of the three displacement mechanisms in the vertical direction by simply starting the motor until the support plate stops rising and falling, and after the installation is completed, the limit arm is returned to the vertical groove by tightening the bolts, which is convenient for operation and can also remind the staff to always pay attention to the need to tighten the bolts, thereby eliminating safety hazards and ensuring the accuracy of experimental data. 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 Schematic diagram of the displacement mechanism of the present invention.

[0025] Figure 3 It is an exploded schematic diagram of the displacement mechanism of the present invention.

[0026] Figure 4 It is a schematic diagram of the supporting component of the present invention.

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

[0028] Figure 6 It is a schematic diagram of the auxiliary components of the present invention.

[0029] Figure 7 It is the installation schematic diagram of the present invention. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] Reference Figure 1 to Figure 3 , which is the first embodiment of the present invention, provides an uneven displacement test device suitable for a transmission tower, comprising:

[0036] The main body 100 includes a base plate 101, a fixing frame 102 fixedly connected to the outside of the base plate 101, and a model component 103 adapted to be installed on the outside of the fixing frame 102;

[0037] The displacement mechanism 200 includes a weighing plate 201 fixedly connected to the outside of the base plate 101, a sliding component 202 adapted to be installed on the outside of the weighing plate 201, and a supporting component 203 adapted to be installed on the outside of the sliding component 202, a lifting component 204 adapted to be installed inside the supporting component 203, and an auxiliary component 205 adapted to be installed inside the supporting component 203.

[0038] Specifically, the model component 103 includes a connecting plate 103a disposed outside the fixing frame 102, a transmission tower model 103b fixedly connected to the outside of the connecting plate 103a, and a bolt 103c threadedly connected to the inside of the connecting plate 103a;

[0039] The fixing frame 102 and the connecting plate 103a are connected by bolts 103c.

[0040] Furthermore, the sliding component 202 includes a sliding plate 202 a slidably connected to the outside of the weighing plate 201 , and a hydraulic push rod 202 b adapted to be installed on the outside of the weighing plate 201 .

[0041] Furthermore, the sliding component 202 further includes a transition plate 202c slidably connected to the outside of the weighing plate 201, and a force sensor 202d disposed on the outside of the transition plate 202c;

[0042] One end of the force sensor 202d is bolted to the outside of the slide plate 202a, and the other end of the force sensor 202d is bolted to the outside of the transition plate 202c. The transition plate 202c is adapted to be installed at the output end of the hydraulic push rod 202b.

[0043] By driving the hydraulic push rod 202b, the hydraulic push rod 202b can drive the transition plate 202c to slide, the transition plate 202c drives the force sensor 202d bolted thereto to slide, and the force sensor 202d drives the slide plate 202a bolted thereto to slide.

[0044] It is worth noting that the sliding components 202 are provided in two groups, as shown in the attached Figure 3 As shown, the upper group of sliding components 202 utilizes the slide plate 202a in the lower group of sliding components 202 to replace the weighing plate 201, and the rest of the movement process is similar to that of the lower group of sliding components 202.

[0045] The column foot of the transmission tower model can be horizontally displaced by means of the hydraulic push rods 202b in the two sets of sliding components 202.

[0046] Example 2

[0047] Reference Figure 1 to Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a working state of the displacement mechanism 200 is provided.

[0048] Furthermore, the supporting component 203 includes a supporting block 203a fixedly connected to the outer side of the slide plate 202a, a vertical groove 203b provided inside the supporting block 203a, and an annular groove 203c provided inside the supporting block 203a.

[0049] Furthermore, the support component 203 also includes an arc groove 203d opened inside the support block 203a, a limit rod 203e slidably connected to the inside of the support block 203a, and a support plate 203f fixedly connected to the outside of the limit rod 203e.

[0050] Specifically, the lifting component 204 includes a motor 204a adapted to be installed inside the slide plate 202a, and a screw rod 204b fixedly connected to the output end of the motor 204a.

[0051] More specifically, the lifting component 204 further includes a sleeve 204c threadedly connected to the outside of the screw rod 204b, a limiting arm 204d fixedly connected to the outside of the sleeve 204c, and a first arc surface 204e opened inside the limiting arm 204d;

[0052] The sleeve 204c is rotatably connected to the support plate 203f.

[0053] In addition, the auxiliary component 205 includes an arc plate 205a disposed inside the arc groove 203d, a second arc surface 205b opened outside the arc plate 205a, and a connecting rod 205c fixedly connected to the outside of the arc groove 203d;

[0054] The connecting rod 205c is slidably connected inside the supporting block 203a, and the arc plate 205a and the supporting block 203a are made of magnetic materials and are magnetically connected therebetween, that is, the arc plate 205a can be adsorbed inside the arc groove 203d.

[0055] Finally, the auxiliary component 205 further includes an outer cylinder 205d slidably connected to the outside of the connecting rod 205c, and a spring 205e disposed inside the outer cylinder 205d.

[0056] When installing the transmission tower model 103b, it should be ensured that the height of the three displacement mechanisms 200 is flush with the height of the fixing frame 102. When the fixing frame 102 and the three displacement mechanisms 200 are at the same height, the four column feet of the transmission tower model 103b can be installed.

[0057] In addition, while ensuring that the fixing frame 102 and the three displacement mechanisms 200 are at the same height, it should also be ensured that the support plate 203f at the top of the displacement mechanism 200 should be in the middle position within the movable range of the support plate 203f, that is, after the installation is completed, the support plate 203f should satisfy the upward movable stroke equal to the downward movable stroke, thereby ensuring that after the installation of the transmission tower model 103b is completed, its column foot can move both upward and downward, and the upper and lower movable strokes are equal, so that the column foot of the transmission tower model 103b can simulate the real geological disaster scene, so as to ensure that the simulation experiment can collect complete data.

[0058] Based on this, before installation, the staff starts the motor 204a, so that the motor 204a drives the sleeve 204c to move vertically through the rotation of the screw 204b. When the sleeve 204c moves to the point where the limit arm 204d is just aligned with the annular groove 203c, the motor 204a continues to drive the screw 204b to rotate. At this time, since the limit arm 204d is aligned with the annular groove 203c, the limit arm 204d is not restricted in the circumferential position, and the sleeve 204c will rotate with the screw 204b without moving vertically, that is, the limit arm 204d will leave the vertical groove 203b and enter the inside of the annular groove 203c, as shown in the attached figure. Figure 5 shown.

[0059] When the staff observes that the support plate 203f is no longer raised or lowered, it can be known that the support plate 203f has moved to the middle position, and the motor 204a can be turned off at this time to carry out the installation work.

[0060] After the connection plate 103a at the column foot position of the transmission tower model 103b is fitted with the support plate 203f, the bolts 103c are tightened to tightly connect the connection plate 103a with the support plate 203f.

[0061] Example 3

[0062] Reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that another working state of the displacement mechanism 200 is provided.

[0063] During the process of tightening the bolt 103c, the bottom end of the bolt 103c will touch and squeeze the top end of the outer cylinder 205d, so that during the tightening process, the bolt 103c will push the outer cylinder 205d to descend, so that the outer cylinder 205d drives the arc plate 205a to descend through the connecting rod 205c and the spring 205e. During the descending process of the arc plate 205a, the second arc surface 205b will squeeze the first arc surface 204e, so that under the action of the squeezing force, the limit arm 204d will rotate out of the annular groove 203c and enter the vertical groove 203b.

[0064] In addition, when the highest point of the first arc surface 204e coincides with the lowest point of the second arc surface 205b, the limit arm 204d will be unable to rotate under the action of the extrusion force. However, it is a very small probability event that the highest point of the first arc surface 204e coincides with the lowest point of the second arc surface 205b. In actual use, it can be ignored. In addition, if this situation happens, you only need to start the motor 204a again to make the limit arm 204d continue to rotate for a certain distance.

[0065] When the arc plate 205a moves to the bottom, the side surface of the arc plate 205a blocks the entrance of the annular groove 203c, so that the limiting arm 204d will not enter the annular groove 203c during subsequent normal lifting and lowering movements.

[0066] It is worth noting that only when the bolt 103c is tightened to the extreme position can the limit arm 204d be completely pressed out of the annular groove 203c, so that the staff needs to fully tighten the bolt 103c during installation to prevent the staff from negligently failing to fully tighten the bolt 103c, causing safety hazards or inaccurate experimental results.

[0067] After the installation is completed, in the subsequent normal experiment process, when the support plate 203f descends, the bolt 103c will continue to squeeze the outer cylinder 205d, and because the arc plate 205a has descended to the limit position, the outer cylinder 205d will squeeze the spring 205e, so that the bolt 103c and the outer cylinder 205d have space to move downward.

[0068] If the support plate 203f rises to the point where the bolt 103c no longer presses the outer tube 205d, the arc plate 205a will return to the inside of the arc groove 203d under the effect of magnetic attraction.

[0069] In summary, through the cooperation of various components, when installing the transmission tower model 103b, it is possible to easily complete the height calibration of the three displacement mechanisms 200 in the vertical direction by only starting the motor 204a until the support plate 203f no longer rises and falls, and after the installation is completed, the limit arm 204d is returned to the vertical groove 203b by tightening the bolt 103c, which is convenient for operation and can also remind the staff to always pay attention to the need to tighten the bolt 103c, thereby eliminating safety hazards and ensuring the accuracy of the experimental data.

[0070] 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 several modifications still falling within the scope of the appended claims.

[0071] 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.

[0072] 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 non-uniform displacement test device suitable for transmission towers, characterized in that: include, A main body mechanism (100) comprising a base plate (101), a fixing frame (102) fixedly connected to the outside of the base plate (101), and a model component (103) adapted to be installed on the outside of the fixing frame (102); The displacement mechanism (200) comprises a weighing plate (201) fixedly connected to the outside of the base plate (101), a sliding component (202) adapted to be installed on the outside of the weighing plate (201), a supporting component (203) adapted to be installed on the outside of the sliding component (202), a lifting component (204) adapted to be installed inside the supporting component (203), and an auxiliary component (205) adapted to be installed inside the supporting component (203).

2. The uneven displacement test device for transmission towers according to claim 1, characterized in that: The model component (103) comprises a connection plate (103a) arranged outside the fixing frame (102), a transmission tower model (103b) fixedly connected to the outside of the connection plate (103a), and a bolt (103c) threadedly connected to the inside of the connection plate (103a); Wherein, the fixing frame (102) and the connecting plate (103a) are connected via the bolts (103c).

3. The uneven displacement test device for transmission towers according to claim 1 or 2, characterized in that: The sliding component (202) comprises a sliding plate (202a) slidably connected to the outside of the weighing plate (201), and a hydraulic push rod (202b) adapted to be installed on the outside of the weighing plate (201).

4. The uneven displacement test device for transmission towers according to claim 3 is characterized in that: The sliding component (202) further comprises a transition plate (202c) slidably connected to the outside of the weighing plate (201), and a force sensor (202d) arranged on the outside of the transition plate (202c); One end of the force sensor (202d) is bolted to the outside of the slide plate (202a), and the other end of the force sensor (202d) is bolted to the outside of the transition plate (202c), and the transition plate (202c) is adapted to be installed at the output end of the hydraulic push rod (202b).

5. The uneven displacement test device for transmission towers according to claim 4 is characterized in that: The support component (203) comprises a support block (203a) fixedly connected to the outside of the slide plate (202a), a vertical groove (203b) provided inside the support block (203a), and an annular groove (203c) provided inside the support block (203a).

6. The uneven displacement test device for transmission towers according to claim 5, characterized in that: The support component (203) further comprises an arc groove (203d) provided inside the support block (203a), a limit rod (203e) slidably connected inside the support block (203a), and a support plate (203f) fixedly connected to the outside of the limit rod (203e).

7. The uneven displacement test device for transmission towers according to claim 6, characterized in that: The lifting component (204) comprises a motor (204a) adapted to be installed inside the slide plate (202a), and a screw rod (204b) fixedly connected to the output end of the motor (204a).

8. The uneven displacement test device for transmission towers according to claim 7, characterized in that: The lifting component (204) further comprises a sleeve (204c) threadedly connected to the outside of the screw rod (204b), a limiting arm (204d) fixedly connected to the outside of the sleeve (204c), and a first arc surface (204e) provided inside the limiting arm (204d).

9. The uneven displacement test device for transmission towers according to claim 8, characterized in that: The auxiliary component (205) comprises an arc plate (205a) arranged inside the arc groove (203d), a second arc surface (205b) opened outside the arc plate (205a), and a connecting rod (205c) fixedly connected to the outside of the arc groove (203d); Wherein, the connecting rod (205c) is slidably connected inside the supporting block (203a).

10. The uneven displacement test device for transmission towers according to claim 9, characterized in that: The auxiliary component (205) further comprises an outer cylinder (205d) slidably connected to the outside of the connecting rod (205c), and a spring (205e) arranged inside the outer cylinder (205d).

Images