CN219420098U - Holding pole seat and holding pole device - Google Patents

Abstract

The utility model discloses a pole holding seat and a pole holding device, wherein the pole holding seat comprises a base and an ear plate, the base comprises a bottom plate, the bottom end of the ear plate is fixedly connected with a first plate surface of the base, a hole body is arranged on the ear plate, a second plate surface of the base is used for being connected with a pole body, and the first plate surface and the second plate surface are two side surfaces of the base which are arranged back to back. In the pole holding seat that this application provided, through installing the otic placode on the bottom plate for stress point is nearer from bottom plate central point position, can be effectively with the body of rod structure of atress through the bottom plate transmission to pole holding device, the otic placode is bent relatively less, and then makes the pole holding seat can bear great bearing capacity.

Description

Holding pole seat and holding pole device

Technical Field

The utility model relates to the technical field of construction of power transmission and transformation engineering, in particular to a pole holding seat. The utility model also relates to a pole holding device comprising the pole holding seat.

Background

In the power industry, in order to realize long-distance power transmission, an iron tower needs to be erected. The iron tower consists of a plurality of angle steel and steel plate parts. In construction, if the topography condition is good, the ground is wide and smooth, and the whole tower can be erected after the segmentation is assembled, but the tower position is in most cases the step by step complete the work of group tower, therefore, just need to adopt the pole-holding to hoist the tower material in the group tower in-process.

As shown in fig. 1 to 3, the pole holding device is generally an elongated rod, and includes a rod body 01 and a pole holding seat, wherein the rod body 01 includes two sections of conical sections at two ends and a plurality of straight sections, and the pole holding seat is installed at the head of the conical sections. The usual pole holder includes base and otic placode 03, and wherein, the base includes bottom plate 02 and installs the curb plate 04 at bottom plate 02 lateral part, and otic placode 03 installs on curb plate 04, is equipped with the pore structure on bottom plate 02 and the head fixed connection otic placode 03 of cone section, supplies to lift by crane and act as go-between and use.

The pole holding device belongs to the axle center stress component. Ideally, the bearing capacity of the holding pole reaches the design maximum value when the acting point of the lug plate 03 is positioned at the top of the holding pole and the direction coincides with the axis of the pole body 01. But is practically impossible to do. The structure of the conical section of the pole body 01 determines that the distance F between the pole body 01 and the axial lead is called as the eccentricity, and the middle part of the pole holding device is subjected to bending stress due to the existence of the eccentricity, so that the maximum load allowed by the pole holding device must be reduced, and the maximum design value cannot be reached, thereby ensuring the safety of the pole holding. The smaller the eccentricity is, the smaller the bending degree of the holding pole is, the larger the maximum load allowed by the holding pole is close to the design maximum value, and the safety is also higher.

Because traditional otic placode 03 is located the base lateral wall, then the stress point is located the cone section top width scope outside, and with body of rod 01 axis distance far away, leads to the bearing capacity of embracing the pole seat lower. Meanwhile, the lug plate 03 with the greatest stress is arranged on the side plate 04, the upper end of the side plate 04 is welded with the bottom plate 02, and the lower end of the side plate 04 is suspended, so that great bending stress is generated at the junction of the lug plate 03 and the bottom plate 02 after the lug plate 03 is stressed, and the pole holding seat cannot bear larger bearing capacity.

Therefore, how to improve the bearing capacity of the pole holder is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

The utility model aims to provide a pole holding base, which has improved bearing capacity. Another object of the present utility model is to provide a pole device comprising a pole holder as described above.

In order to achieve the above purpose, the utility model provides a pole holding seat, which comprises a base and an ear plate, wherein the base comprises a bottom plate, the bottom end of the ear plate is fixedly connected with a first plate surface of the base, a hole body is arranged on the ear plate, a second plate surface of the base is used for being connected with a pole body, and the first plate surface and the second plate surface are two side surfaces of the base which are arranged back to back.

Optionally, in the aforesaid pole holding seat, the otic placode is including acting as go-between the otic placode, act as go-between and be equipped with on the otic placode the pore body is first pore body, along vertical downward projection, first pore body projection is located in the bottom plate projection scope.

Optionally, in the pole holding seat, the bottom end of the stay wire lug plate is welded with the bottom plate or the stay wire lug plate and the bottom plate are integrally formed.

Optionally, in the pole holder, one end of the stay wire ear plate is located at the center line of the base, and adjacent stay wire ear plates are fixedly connected.

Optionally, in the pole holding seat, the number of the stay wire ear plates is four, and all stay wire ear plates are distributed in a radial manner with the center of the base as a circle center.

Optionally, in the pole holder, the lug plate further includes a lifting lug plate, a second hole body is formed on the lifting lug plate, and the bottom end of the lifting lug plate is welded with the bottom plate or the stay wire lug plate is integrally formed with the bottom plate.

Optionally, in the pole holder, the ear plate includes a stay wire ear plate, the hole body provided on the stay wire ear plate is a first hole body, the first hole body projects vertically downwards, and the first hole body projection is located in the projection range of the bottom plate;

the stay wire lug plates and the lifting lug plates are multiple, and one lifting lug plate is arranged between every two adjacent stay wire lug plates.

Optionally, in the pole holding seat, a reinforcing rib is arranged at a joint of the lifting lug plate and the stay wire lug plate.

Optionally, in the pole holding seat, a reinforcing rib is arranged at a joint of the lug plate and the bottom plate.

The pole holding device comprises a pole body and a pole holding seat, wherein the pole holding seat is any one of the pole holding seats, and the bottom plate is fixedly connected with the pole body.

In the technical scheme, the pole holding seat comprises the base and the lug plate, wherein the base comprises the bottom plate, the bottom end of the lug plate is fixedly connected with the first plate surface of the base, the lug plate is provided with the hole body, the second plate surface of the base is used for being connected with the pole body, and the first plate surface and the second plate surface are the two side surfaces of the base, which are arranged back to back.

According to the pole holding seat, the lug plate is arranged on the bottom plate, so that the stress point is closer to the center of the bottom plate, the stress can be effectively transferred to the pole body structure of the pole holding device through the bottom plate, the lug plate is bent relatively little, and the pole holding seat can bear larger bearing capacity.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a three-dimensional structural view of a conventional pole device;

fig. 2 is a front view of a conventional pole device;

fig. 3 is a front view of a conventional pole housing;

fig. 4 is a three-dimensional structure diagram of a pole holder provided by an embodiment of the present utility model;

fig. 5 is a front view of a pole holder according to an embodiment of the present utility model;

fig. 6 is a top view of the pole housing of fig. 5;

fig. 7 is a side view of the pole housing of fig. 5;

fig. 8 is a schematic structural diagram of the cooperation of the pole holder and the shackle according to the embodiment of the present utility model;

fig. 9 is a three-dimensional structure diagram of a pole holding device provided by an embodiment of the present utility model;

fig. 10 is a front view of a pole device according to an embodiment of the present utility model;

FIG. 11 is a schematic diagram of a rod stress provided by an embodiment of the present utility model;

fig. 12 is a finite element analysis result of a stress condition of a pole base at the bottom of a pole body in the pole holding device according to the embodiment of the present utility model;

fig. 13 is a finite element analysis result of a stress condition of a pole seat at the top of a pole in a pole holding device according to an embodiment of the present utility model;

fig. 14 is a diagram illustrating a static stress analysis of a bottom pole seat at the top of a pole body in a pole holding device according to an embodiment of the present utility model.

Wherein in fig. 1-10:

01-rod body, 02-bottom plate, 03-ear plate and 04-side plate;

1-rod body, 2-shackle, 3-stay lug plate, 4-bottom plate, 5-lifting lug plate, 6-first hole body and 7-second hole body.

Detailed Description

The core of the utility model is to provide a pole holder, and the bearing capacity of the pole holder is improved. Another object of the present utility model is to provide a pole device comprising a pole holder as described above.

The present utility model will be described in further detail below with reference to the drawings and embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model.

Please refer to fig. 4 to 14.

In a specific implementation manner, the pole holding seat provided by the specific embodiment of the utility model comprises a base and an ear plate, wherein the base comprises a bottom plate 4, the bottom plate 4 is made of common Q345B material and is a square steel plate, and a plurality of bolt mounting holes are formed in the square steel plate and are used for being connected with the cone section of the pole body 1.

The bottom of otic placode and the first face fixed connection of base are equipped with the pore volume on the otic placode, and the second face of base is used for being connected with body of rod 1, and first face and second face are the base both sides surface that sets up dorsad. The pole holder may also be referred to as a pole cap. During assembly, the pole holding seat and the cone section of the pole body 1 are firmly fastened by bolts.

Specifically, the base still includes the curb plate of being connected with bottom plate 4 lateral wall, and the curb plate is the annular setting around bottom plate 4 external.

According to the pole holding seat, the lug plate is arranged on the bottom plate 4, so that the stress point is closer to the center position of the bottom plate 4, the stress can be effectively transferred to the pole body 1 structure of the pole holding device through the bottom plate 4, the lug plate is bent relatively little, and the pole holding seat can bear larger bearing capacity. The bending moment generated by the load to the middle position of the rod body 1 after the holding rod seat is stressed is small, the rod body 1 is not easy to break from the middle part, and the construction safety is effectively ensured.

In a specific embodiment, the ear plate includes a stay wire ear plate 3, the hole body provided on the stay wire ear plate 3 is a first hole body 6, and the projection of the first hole body 6 is located in the projection range of the bottom plate 4 along the vertical downward projection. Of course, in specific use, the projection of the first hole body 6 may be located at the projection edge of the bottom plate 4 or located at the projection outer side of the bottom plate 4, and close to the bottom plate 4, as required.

Specifically, the bottom of the stay wire lug plate 3 is welded and fixed with the bottom plate 4. Of course, in order to improve the processing efficiency, the stay lug plate 3 and the bottom plate 4 may be integrally formed, for example, cast.

The number of the wire-drawing lug plates 3 is four, and all the wire-drawing lug plates 3 are distributed in a radial mode by taking the center of the base as the center of a circle.

Preferably, one end of the stay wire lug plate 3 is positioned at the center line of the base, and the adjacent stay wire lug plates 3 are fixedly connected. For example, when the ear plate 3 of acting as go-between is four, four diagonal hanging points (first hole body 6) that the atress is biggest are nearer from body of rod 1, can effectively transmit most force to body of rod 1 through bottom plate 4, make the awl section of body of rod 1 when body of rod 1 is in four diagonal hanging points atress unbalance under the slope hoist and mount operating mode, body of rod 1 is mainly born axial pressure (body of rod 1 belongs to axle center atress component), and the atress is less relatively, has improved body of rod 1's atress situation. The parts are symmetrically arranged, so that welding deformation can be prevented to the greatest extent, and the overall dimension is ensured to meet the processing requirement. The device can flexibly adapt to hoisting tower materials from the front, back, left and right sides of the iron tower, and the mounting holes can adapt to shackles 2 with various specifications.

In a specific embodiment, the ear plate further comprises a lifting lug plate 5, and a second hole body 7 is arranged on the lifting lug plate 5. The projection of the second hole body 7 is positioned in the projection range of the bottom plate 4 along the vertical downward projection. Of course, in specific use, the projection of the second hole body 7 may be located at the projection edge of the bottom plate 4 or located at the projection outer side of the bottom plate 4, and may be close to the bottom plate 4, as required. Wherein the number of lifting lug plates 5 is at least 1, and can be 1, 2, 3 or 4, etc. When the lifting lug plates 5 are arranged 4, the tower materials are conveniently lifted from the front, the back, the left and the right of the iron tower.

The cone-section top of the rod body 1 is a plane. According to the utility model, the stress points are moved above the tops of the cone sections, as shown in fig. 11, the eccentricity is reduced, and four diagonal hanging points with the maximum stress are closer to the main materials, so that four main materials of the cone sections in the rod body 1 are mainly subjected to axial pressure, the stress is relatively small, and the stress condition of the main materials is improved.

Specifically, the bottom of lifting lug 5 is welded with bottom plate 4. Of course, in order to improve the processing efficiency, the lifting lug plate 5 and the bottom plate 4 may be integrally formed, for example, cast.

In order to improve the connection stability, the lifting lug plate 5 is fixedly connected with the stay wire lug plate 3.

The stay wire ear plate 3 can be made of a common Q345B material, is formed by flame cutting a steel plate, and is provided with two shackle mounting holes (first hole bodies 6), wherein the first hole bodies 6 are used for being connected with the shackle 2 and then connected to a bearing rope or a stay wire steel wire rope.

The lifting lug plate 5 can be made of a common Q345B material, is formed by flame cutting of a steel plate, is provided with a shackle mounting hole (a second hole body 7), and is used for being connected with the shackle 2 and then is connected with a lifting pulley.

The wire pulling lug plates 3 and the lifting lug plates 5 are multiple, and one lifting lug plate 5 is arranged between two adjacent wire pulling lug plates 3.

In order to further improve the bearing capacity of the pole holder, preferably, the joint of the lifting lug plate 5 and the stay wire lug plate 3 is provided with a reinforcing rib, and specifically, the reinforcing rib is welded with the lifting lug plate 5 and the stay wire lug plate 3. And a rib plate is connected between the lifting lug plate 5 and the stay wire lug plate 3. The number of the rib plates can be four, eight and the like, and preferably, the wall surfaces of each lifting lug plate 5 and the stay wire lug plate 3 are provided with reinforcing ribs.

On the basis of the above schemes, preferably, the joint of the ear plate and the bottom plate 4 is provided with a reinforcing rib. Preferably, the reinforcing rib is of a bent L-shaped plate body structure, and the reinforcing rib is welded with the lug plate and the bottom plate 4.

This application carries out the atress analysis with the pole seat and obtains:

table 1 bottom pole holder stress condition simulation

Fig. 12 is obtained by finite element analysis. The maximum stress position is positioned in the mounting hole of the shackle 2, the value of the maximum stress position reaches 139MPa, the safety coefficient=470/139=3.38 >3, and the maximum stress position meets the standard requirement.

Table 2 simulation of top pole holder stress conditions

Fig. 13 is obtained by finite element analysis. It can be seen that the maximum stress part is located at the junction of the lower part of the mounting hole of the lifting lug plate shackle 2 and the bottom plate 4, the value of the maximum stress part is 157MPa, the safety coefficient=470/157=2.99, the maximum stress part is approximately equal to 3, and the maximum stress part meets the standard requirement.

According to the stress working condition and the analysis result, the pole holder has larger bending resistance.

The rod body 1 belongs to an axle center stress component. Ideally, the holding pole bearing capacity reaches the design maximum value when the force F acting point is positioned at the top of the pole body 1 and the direction coincides with the axis of the pole body 1. But is practically impossible to do. The structure of the pole cone section determines that the distance F between the pole cone section and the axial lead is called as the eccentricity, and the middle part of the pole is subjected to bending stress due to the existence of the eccentricity, so that the maximum load allowed by the pole must be reduced, and the maximum design value cannot be reached, thereby ensuring the safety of the pole. The smaller the eccentricity is, the smaller the bending degree of the holding pole is, the larger the maximum load allowed by the holding pole is close to the design maximum value, and the safety is also higher. See fig. 11. This value depends on the design of the pole cap. Under the condition of not affecting the installation of the shackle 2, the smaller the distance between the lifting point and the central axis of the holding pole is, the better

Therefore, in practical application, the smaller the eccentricity is, the better. Fig. 11 shows that the hat pole cap stress point is outside the width of the top of the cone section, while the seat pole cap stress point is inside the width of the top of the cone section, with a relatively small eccentricity, i.e. f2< f1.

The use of a seat-shaped pole holder enables the maximum load allowed by the pole body 1 to be closer to the design maximum.

The method has the advantages that the stress conditions of different parts of the existing pole cap under different working conditions can be simulated by adopting a finite element analysis method when the pole holder is designed, the weak points and main defects of the existing pole cap are found, and the pole holder is further optimally designed, so that the pole holder which is simple in structure, easy to process, light in weight and easy to achieve the national relevant standard requirements on safety coefficient of key parts is developed, the serialization, standardization and batch production are easy to realize, the construction safety is ensured, the construction safety risk level of a power transmission line tower is effectively reduced, the phenomenon of overlarge local stress existing in other structural forms is effectively eliminated, and the construction safety risk level of the power transmission line tower is remarkably reduced.

The pole holding seat provided by the utility model has the advantages of fewer parts, simple structure and lower skill level for processing staff. Easy processing, easy assurance of product quality consistency and easy realization of serialization and standardized batch production. Meanwhile, the device is simple to use, light in weight and convenient to transport and install, and is particularly beneficial to mountain area group tower construction.

Simultaneously, the pole holding seat that this application provided can be used for body of rod 1 top, also can be used for body of rod 1 bottom as body of rod 1's base, and the commonality is strong.

The application provides a pole holding device, including body of rod 1 and pole holding seat, wherein the pole holding seat is above-mentioned arbitrary pole holding seat, bottom plate 4 and body of rod 1 fixed connection. The above-mentioned specific structure about pole holder has been described, and this application includes above-mentioned pole holder, has above-mentioned technical effect equally.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The pole holding seat is characterized by comprising a base and an ear plate, wherein the base comprises a bottom plate (4), the bottom end of the ear plate is fixedly connected with a first plate surface of the base, a hole body is formed in the ear plate, a second plate surface of the base is used for being connected with a pole body (1), and the first plate surface and the second plate surface are two side surfaces of the base, which are arranged back to back.

2. The pole holder according to claim 1, characterized in that the ear plate comprises a stay-on ear plate (3), the hole body arranged on the stay-on ear plate (3) is a first hole body (6), the first hole body (6) projects downwards along the vertical direction, and the projection of the first hole body (6) is located in the projection range of the bottom plate (4).

3. Holding pole base according to claim 2, characterized in that the bottom end of the stay lug plate (3) is welded with the bottom plate (4) or the stay lug plate (3) is integrally formed with the bottom plate (4).

4. The pole holder according to claim 2, characterized in that one end of the stay wire ear plate (3) is located at the center line of the base, and adjacent stay wire ear plates (3) are fixedly connected.

5. The pole holder according to claim 2, characterized in that the number of the stay lug plates (3) is four, and all stay lug plates (3) are radially distributed with the center of the base as the center of the circle.

6. The pole holder according to claim 2, characterized in that the ear plate further comprises a lifting lug plate (5), a second hole body (7) is arranged on the lifting lug plate (5), and the bottom end of the lifting lug plate (5) is welded with the bottom plate (4) or the stay wire ear plate (3) is integrally formed with the bottom plate (4).

7. The pole holder according to claim 6, wherein the stay wire lug plates (3) and the lifting lug plates (5) are multiple, and one lifting lug plate (5) is arranged between two adjacent stay wire lug plates (3).

8. The pole holder according to claim 7, characterized in that the connection between the lifting lug plate (5) and the stay lug plate (3) is provided with a reinforcing rib.

9. A pole holder according to any one of claims 1-8, characterized in that the connection of the ear plate and the base plate (4) is provided with stiffening ribs.

10. The pole holding device comprises a pole body (1) and a pole holding seat, and is characterized in that the pole holding seat is the pole holding seat according to any one of claims 1-9, and the bottom plate (4) is fixedly connected with the pole body (1).