CN113324681B - Anchoring safety detection method for overhead contact system davit anchoring part - Google Patents
Anchoring safety detection method for overhead contact system davit anchoring part Download PDFInfo
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- CN113324681B CN113324681B CN202110590663.3A CN202110590663A CN113324681B CN 113324681 B CN113324681 B CN 113324681B CN 202110590663 A CN202110590663 A CN 202110590663A CN 113324681 B CN113324681 B CN 113324681B
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- 238000004873 anchoring Methods 0.000 title claims abstract description 70
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims description 19
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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Abstract
The invention belongs to the technical field of anchoring safety detection, aims to solve the problems that the pulling detection of a circumferential anchoring part of a contact net lifting column in the prior art is time-consuming and labor-consuming and has low efficiency, and particularly relates to an anchoring safety detection method of a contact net lifting column anchoring part, which comprises the following steps: the auxiliary device and the drawing detector are sequentially coaxially sleeved outside the anchoring part; adjusting the positions of the supporting parts of the auxiliary device to enable at least three supporting parts to be positioned outside the bottom plate of the overhead line system; the auxiliary device is separated from the contact net bottom plate by adjusting the leveling mechanism; the anchor is screwed to pull the anchor upward and the anchoring force of the anchor is detected by a pull detector. According to the invention, the screw thread of the part of the overhead contact system davit anchor, which is higher than the nut, can be directly used for detection without disassembling the overhead contact system davit anchor nut. And checking the torque of the nut after detection. By adopting the method, not only can time be saved, but also the influence on the bearing capacity of other anchoring parts can be reduced.
Description
Technical Field
The invention belongs to the technical field of anchoring safety detection, and particularly relates to an anchoring safety detection method for a catenary suspension post anchoring part.
Background
The overhead line system davit hangs at the tunnel top in the tunnel, adopts buried channel or rearmounted channel connection between and the tunnel in advance, after the operation of a period, will detect the stability of davit. The former detection mode is that the nut of the T-shaped bolt for fixing the suspension post is removed, and the detection pivot cannot be arranged on a bottom plate of a contact net, so that a hydraulic jack support is required to be installed firstly, then a hydraulic jack is installed, the hydraulic jack is verified through a common drawing instrument, and the nut is screwed down after the problem is verified.
Because overhead contact networks, tension lines, transmission lines and the like exist in the tunnel, the working face is very limited. And the weight of the hydraulic jack support is more than 10 kilograms, the weight of the hydraulic jack is more than 20 kilograms, and the weight of the drawing instrument is nearly 20 kilograms, so that the conventional detection mode can be finished together by at least 3 people. And each suspension post is usually hung by four T-shaped bolts, and after one nut is removed, the bearing capacity of the other three bolts is obviously increased. Only one nut can be dismounted each time, and the nut is screwed up after the test; then after another nut is removed and the test is performed again, the nut is tightened. The work efficiency is very low, wastes time and energy.
Disclosure of Invention
In order to solve the above-mentioned problem among the prior art, for solving the problem that the detection of drawing of contact net davit circumference anchor assembly among the prior art wastes time and energy and inefficiency, this application provides a contact net davit anchor assembly's anchor safety detection method, and this method is used for detecting the anchor power of anchor assembly on the contact net bottom plate, and this method specifically includes following step:
step S100, coaxially sleeving an auxiliary device outside an anchoring part, wherein the auxiliary device is of an annular plate-shaped structure with a plurality of supporting points;
step S200, matching the detection part of the drawing detector with the anchoring part coaxially so that the drawing detector is sleeved outside the auxiliary device;
step S300, adjusting the position of the auxiliary device supporting part so that at least part of the auxiliary device supporting part is positioned outside a bottom plate of the overhead line system; three supports
Step S400, adjusting a leveling mechanism arranged at a supporting part of an auxiliary device to separate the auxiliary device from a bottom plate of a contact net;
and step S500, screwing the anchor to enable the anchor to be pulled upwards and detecting the anchoring force of the anchor through a pulling detector.
In some preferred technical solutions, the auxiliary device includes a first support portion, a second support portion, and a leveling mechanism, the first support portion is an annular structure, the second support portion is radially outwardly extended relative to the first support portion, and a plurality of the second support portions are circumferentially distributed along the first support portion so that the auxiliary device forms an axisymmetric structure;
a plurality of leveling mechanism install respectively in the second supporting part deviates from the one end of first supporting part, leveling mechanism is used for adjusting the depth of parallelism between second supporting part and the contact net bottom plate.
In some preferred technical schemes, the distance between the prefabricated hole and the center of the first supporting part is larger than the distance between the axis of the anchoring part and the outer edge of the bottom plate of the contact net.
In some preferred technical schemes, the auxiliary device and the drawing detector are provided with magnetic attraction mechanisms at the ends close to each other, and the auxiliary device and the drawing detector are fixed by the magnetic attraction mechanisms in an adsorption manner.
In some preferred technical schemes, the magnetic attraction mechanism comprises a plurality of circular magnets which are evenly arranged along the circumferential direction of the first supporting part.
In some preferred technical solutions, the plurality of second supporting portions are divided into two groups, where the second supporting portions in the first group are uniformly arranged along the circumferential direction of the first supporting portion, and the second supporting portions in the second group are axially symmetrically arranged with respect to a center line of any one of the second supporting portions in the first group.
In some preferred technical solutions, the number of the second supporting portions is five, the number of the second supporting portions in the first group is three, and the number of the second supporting portions in the second group is two.
In some preferred technical solutions, the second supporting portions in the first group and the second supporting portions in the second group are alternately arranged without being overlapped.
In some preferred technical solutions, the second supporting portion is a plate-shaped structure, and a width of a connection end of the second supporting portion and the first supporting portion is greater than a width of an end of the second supporting portion departing from the first supporting portion.
In some preferred technical solutions, the preformed hole is a threaded hole, and the detachable connecting member is connected with the second supporting portion through a thread.
The invention has the beneficial effects that:
the method for detecting the anchoring safety of the overhead contact system davit anchoring piece can directly detect the anchoring safety of the overhead contact system davit anchoring piece by utilizing the screw thread of the overhead contact system davit anchoring piece, which is higher than the nut, under the condition that the nut of the overhead contact system davit anchoring piece is not disassembled. And checking the torque of the nut after detection. By adopting the method, the nut of the T-shaped bolt for fixing the suspension post can not be detached, so that not only is a large amount of time saved, but also the influence on the bearing capacity of other anchoring parts on the bottom plate of the same contact net during detection can be reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic flow chart of an anchoring safety detection method for an overhead contact system davit anchor according to an embodiment of the present invention;
FIG. 2 is a schematic view of an overall structure of an auxiliary device according to an embodiment of the present invention;
fig. 3 is a schematic view of a bottom plate of a catenary in an embodiment of the invention;
FIG. 4 is a schematic view of the installation of the auxiliary device in an embodiment of the present invention;
FIG. 5 is a schematic view of a leveling mechanism in one embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an operating status of an auxiliary device according to an embodiment of the present invention;
list of reference numerals:
100-an auxiliary device, 110-a first supporting part, 120-a second supporting part, 121-a prefabricated hole and 130-a magnetic attraction mechanism; 200-a contact net bottom plate; 300-an anchor; 400-a drawing detector; 500-adjusting bolt, 510-magnet.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The invention discloses an anchoring safety detection method for an anchoring part of a catenary suspension post, which is used for detecting the anchoring force of the anchoring part on a catenary bottom plate, and specifically comprises the following steps:
step S100, coaxially sleeving an auxiliary device outside an anchoring part, wherein the auxiliary device is of an annular plate-shaped structure with a plurality of supporting points;
step S200, fixing the detection part of the drawing detector and the anchoring piece coaxially so that the drawing detector is sleeved outside the auxiliary device;
step S300, adjusting the positions of the supporting portions of the auxiliary device 100 so that at least three second supporting portions are located outside the bottom plate 200 of the overhead line system;
step S400, adjusting a leveling mechanism installed at the supporting portion of the auxiliary device 100 to separate the auxiliary device 100 from the contact net bottom plate 200;
in step S500, the anchor 300 is screwed to pull the anchor 300 upward and the anchoring force of the anchor 300 is detected by the pull detector 400.
In order to more clearly explain the anchoring safety detection method of the catenary suspension post anchor, a preferred embodiment of the invention is detailed below with reference to the attached drawings.
As a preferred embodiment of the present invention, the method for detecting the anchoring safety of the catenary suspension pole anchor of the present invention is shown in fig. 1, and comprises the following steps:
step S100, coaxially sleeving an auxiliary device outside an anchoring part, wherein the auxiliary device is of an annular plate-shaped structure with a plurality of supporting points;
step S200, the detection part of the drawing detector and the anchoring piece are coaxially matched and fixed, so that the drawing detector is sleeved outside the auxiliary device;
step S300, adjusting the position of the auxiliary device supporting part so that at least part of the auxiliary device supporting part is positioned outside a bottom plate of the overhead line system; three supports
Step S400, adjusting a leveling mechanism arranged at a supporting part of an auxiliary device to separate the auxiliary device from a bottom plate of a contact net;
and step S500, screwing the anchor to enable the anchor to be pulled upwards and detecting the anchoring force of the anchor through a pulling detector.
Specifically, the auxiliary device of the present application includes a first supporting portion 110 and a second supporting portion 120, the first supporting portion 110 is a ring-shaped structure, a through hole is provided in the center thereof, and the through hole is used for matching with the outer diameter of the anchor 300 to be detected. The second supporting portion 120 is disposed to extend outward in a radial direction relative to the first supporting portion 110, specifically, the second supporting portion 120 is a plate-shaped structure, and a width of a connection end of the second supporting portion 120 and the first supporting portion 110 is greater than a width of an end of the second supporting portion 120 away from the first supporting portion 120. A plurality of second supporting parts 120 are distributed along the circumference of the first supporting part 110 so that the auxiliary device 100 forms an axisymmetric structure; it is understood that the axisymmetrical structure has an axis of symmetry of the first support part 110. It can be understood that, this application auxiliary device sets up to the position that the axis symmetry structure is the second supporting part of convenient operation personnel adjustment, because be symmetrical structure so along clockwise rotation, or anticlockwise rotation all can, can effectively save the activity duration. It is understood that the whole structure of the auxiliary device can be set to be asymmetrical according to the actual situation by those skilled in the art.
One end of the second supporting portion 120, which is away from the first supporting portion 110, is provided with a preformed hole 121, and the leveling mechanism is fixed to the second supporting portion through the preformed hole 121. In some preferred embodiments, the leveling mechanism is a T-bolt having an extending end extending outside the plate-shaped structure of the auxiliary device 100, and the length of the extending end is adjustable, so that the distance between the auxiliary device 100 and the external structure can be adjusted by adjusting the length of the extending end, and the plurality of leveling mechanisms can adjust the levelness of the auxiliary device 100, that is, the distance between the auxiliary device 100 and the bottom plate 200 of the overhead line system can be adjusted by adjusting the plurality of leveling mechanisms. This setting can make this application provide an action plane for drawing the detector to it carries out anchor power detection to treating the anchor assembly 300 that detects to support it. It will be appreciated that the external structure is the mounting face of the catenary suspension post.
In a working state, the center of the first supporting portion 110 and the anchor 300 to be detected are coaxially arranged, and the positions of the second supporting portions 120 are adjusted, so that the prefabricated holes of at least three second supporting portions 120 are located outside the contact net bottom plate 200, the prefabricated holes located outside the contact net bottom plate are fixed through detachable connecting pieces, and the auxiliary device 100 can support and assist the drawing detector 400 in drawing and detecting the anchor 300 on the contact net bottom plate 200.
Referring to fig. 1, the plurality of second supporting portions 120 of the present application are divided into two groups, which are named as a first group and a second group for convenience of description, wherein the second supporting portions 120 of the first group are uniformly arranged along the circumferential direction of the first supporting portion 110, and the second supporting portions 120 of the second group are arranged in a mirror symmetry manner with the center line of any one of the second supporting portions 120 of the first group as an axis.
Preferably, the number of the second supporting parts 120 is 5, the number of the second supporting parts 120 in the first group is 3, and the number of the second supporting parts 120 in the second group is 2. The second supporters 120 in the first group are alternately misaligned with the second supporters 120 in the second group.
It can be understood that in the preferred embodiment of the present application, 5 second support portions 120 and the first support portion 110 together form an axisymmetric structure, wherein the center line of one second support portion 120 of the first group is taken as a reference main axis, and the other 4 second support portions are symmetrically arranged along the reference main axis, wherein the included angle between two second support portions of the second group and the second support portion of the reference main axis is a right angle, and the included angle between the two second support portions of the second group and the second support portion adjacent to the second support portion is 30 °.
In other preferred embodiments of the present application, the number of the second supporting portions may be four, however, there are cases where the four second supporting portions are difficult to adjust in use, and therefore the most preferred embodiment of the present application is to provide five second supporting portions. The technical personnel in this field can understand that, the quantity of second supporting part can also be six, seven, eight etc. however, because this application is used for detecting the contact net davit, it is the absorption at the davit top in fact, therefore, the increase of second supporting part quantity inevitably leads to the increase of auxiliary device whole quality, and then increases the heavy burden of operation personnel, influences work efficiency. Therefore, the most preferable technical scheme is that five second supporting parts are arranged and distributed according to the rule, so that the auxiliary device is the lightest in weight, an operator can adjust the supporting position of the second supporting part, namely the position of the prefabricated hole, at the fastest speed, and the operation efficiency is improved.
In some preferred embodiments, the auxiliary device of the present application is further provided with a magnetic attraction mechanism 130, and the magnetic attraction mechanism 130 is used for attracting the drawing detector 400. Specifically, mechanism 130 is inhaled to magnetism includes a plurality of circular magnet, and a plurality of circular magnet sets up along first supporting part 110 circumference evenly distributed, and preferably, the embodiment that this application attached the drawing illustrates sets up 8 circular magnet evenly distributed between the inner ring and the outer loop of first supporting part 110, and this setting can strengthen auxiliary device 100's adsorption affinity to make state auxiliary device expert can inhale fixedly with drawing detector 400 and contact net bottom plate 200 magnetism more steadily.
Preferably, the auxiliary device comprises two sets of magnetic suction mechanisms which are respectively arranged at two sides of the auxiliary device, the magnetic suction mechanism at one side close to the drawing detector is used for adsorbing the drawing detector, the magnetic suction mechanism at one side away from the drawing detector is used for adsorbing the overhead line system davit base plate in an initial installation state, a constructor takes out the auxiliary device and adsorbs the auxiliary device to the overhead line system davit base plate before construction, thereby enabling the constructor to vacate the hands and take out other tools for subsequent construction, as can be appreciated, because the magnetic attraction devices are arranged on both sides of the auxiliary device, the constructor does not need to worry about the falling of the auxiliary device and the pull detector when the subsequent detection method is implemented, therefore, the auxiliary device of the application enables constructors to be free from cooperation with other people, and the safety detection work of the overhead contact system davit anchoring piece can be completed by a single person.
The preferred method of use of this embodiment is as follows:
step a100, the auxiliary device 100 of the present application is attached to a bottom plate 200 of a contact net, so that a nut of a T-shaped bolt of an anchor to be detected is located at a central portion of the auxiliary device 100.
Step A200, the drawing detector 400 is attached to the auxiliary device 100, so that the detection hole of the drawing detector 400 is concentric with the anchoring member to be detected, namely, is coaxially arranged with the T-shaped bolt.
Step A300, screwing the special drawing rod of the drawing detector 400.
Step a400, adjusting the position of the supporting point of the auxiliary device 100, i.e. the position of the second supporting portion prefabricated hole, so that the stress point is not on the bottom plate 200 of the overhead line system.
Step A500, adjusting the supporting bolts 500 at the prefabricated holes of the auxiliary device 100 until the auxiliary device 100 is separated from the contact net bottom plate 200 and supports a height suitable for detection. Preferably, the height is 10mm or more to facilitate the operation of the drawing tester.
Step a600, the pulling detector 400 performs pulling detection on the anchor.
It should be noted that, in the method, the direction of the supporting bolt 500 at each prefabricated hole of the auxiliary device 100 may be set arbitrarily, and the supporting bolt 500 is assembled preferentially if the large head end of the supporting bolt 500 contacts with the bottom plate of the overhead line system, or assembled after the step a400 if the small head end of the supporting bolt 500 contacts with the bottom plate of the overhead line system.
In other preferred embodiments, the preformed hole 121 of the second support part 120 of the present application is a threaded hole, i.e., the leveling mechanism is connected with the second support part 120 by a thread. Preferably, the leveling mechanism is a supporting bolt 500, the supporting bolt 500 is a T-shaped bolt, the top of the supporting bolt is provided with a magnet 510, the arrangement is used for enabling the T-shaped bolt to be adsorbed on a bottom plate of a catenary suspension post through the magnet 510, when the auxiliary device is installed for positioning, each leveling mechanism is firstly installed at a position corresponding to a prefabricated hole 121 of a second supporting part 120 of the auxiliary device to obtain an assembly body, then the auxiliary device is adsorbed on the bottom plate 200 of the catenary suspension post through each magnet 510 on the assembly body, a nut of the T-shaped bolt to be detected is located at the central part of the auxiliary device 100, and then each supporting part of the auxiliary device can be adjusted to be located on the same horizontal plane by rotating the supporting bolt 500, it can be understood that a scale mark is correspondingly arranged on a threaded post of the supporting bolt for reference of a person skilled in the art. The embodiment preferably has the advantages that the number of the anchoring parts to be detected on the bottom plate of the catenary suspension post is multiple, after the constructor finishes detecting the first anchoring part to be detected, the assembly body can be taken down by means of the adsorption force of the supporting bolt magnets of the assembly body, namely, the auxiliary device and the supporting bolt 500 installed at each prefabricated hole 121 of the auxiliary device are removed, the assembly body can be directly applied to the anchoring force detection of the next anchor member to be detected, the central part of the assembly body auxiliary device 100 is coaxially sleeved with the next anchor member to be detected, and then the anchoring force detection of each anchoring part to be detected on the bottom plate of the suspension post of the contact net can be completed by repeating the steps, and as the leveling mechanism of the embodiment is provided with the magnet, in this embodiment, the side of the auxiliary device facing away from the pull detector does not need to be provided with a magnetic attraction mechanism, and the attached drawings are only schematic diagrams convenient for those skilled in the art to understand. The embodiment can effectively improve the detection efficiency, is simple to operate and saves the time cost.
The method of use of this example is as follows:
step C100, respectively installing each support bolt 500 with the magnet 510 on the prefabricated hole 121 at the second support part of the auxiliary device 100 to form an assembly body;
and step C200, adsorbing each magnet 510 of the assembly body on the contact net bottom plate 200, and enabling the nut of the T-shaped bolt of the anchor to be detected to be positioned in the central part of the auxiliary device 100 of the assembly body.
And step C200, adsorbing the drawing detector 400 on the auxiliary device 100 of the assembly body, and enabling the detection hole of the drawing detector 400 to be concentric with the anchoring piece to be detected, namely, to be coaxially arranged with the T-shaped bolt.
And step C300, screwing the special drawing rod of the drawing detector 400.
And step C400, adjusting the position of the supporting point of the auxiliary device 100 of the assembly body, namely the position of the prefabricated hole of the second supporting part, so that the stress point is not positioned on the contact net bottom plate 200.
And step C500, adjusting the support bolts 500 at the prefabricated holes of the auxiliary device 100, so that the auxiliary device 100 is supported by a height suitable for detection relative to the contact net bottom plate 200. Preferably, the height is 10mm or more to facilitate the operation of the drawing tester.
And step C600, performing drawing detection on the anchor piece through the drawing detector 400.
It can be understood that, in this embodiment, after the detection is completed, the pull detector can be taken down, and then the whole assembly body is taken down, so as to continue to detect the next anchor member to be detected. Therefore, the configuration of constructors can be reduced while the working efficiency is improved, and the detection work can be finished by a single person.
It should be noted that, the working environment of this application is for the work of reverse hanging face, through revolving the special pull rod of drawing the detector soon earlier, then adjusts auxiliary device's strong point position again and can make the installer guarantee that auxiliary device and drawing the detector and can not drop when carrying out the operation, and then can't other people assist the completion operation, single anchor power safety inspection that can accomplish contact net davit anchor assembly.
In the technical solution in the embodiment of the present application, at least the following technical effects and advantages are provided:
according to the anchoring safety detection method for the overhead contact system davit anchoring piece, under the condition that the overhead contact system davit anchoring piece nut is not detached, the screw thread of the overhead contact system davit anchoring piece part higher than the nut part can be used for directly detecting. And checking the torque of the nut after detection. By adopting the method, the nut of the T-shaped bolt for fixing the suspension post can not be detached, so that not only is a large amount of time saved, but also the influence on the bearing capacity of other anchoring parts on the bottom plate of the same contact net during detection can be reduced.
The anchoring safety detection auxiliary device for the overhead contact system davit anchoring part is simple in structure and light in weight, can provide a stress platform for the drawing detector, and cannot influence a bottom plate of the overhead contact system.
The auxiliary device can directly detect the anchoring part of the catenary suspension post by using the anchoring part of the catenary suspension post under the condition of not disassembling the anchoring part nut of the catenary suspension post, namely directly detect the anchoring part by using the thread of the part, higher than the nut, on the T-shaped bolt. And checking the torque of the nut after detection. Because the nut for fixing the anchor part of the catenary suspension post is not detached any more, a large amount of time is saved, and the influence on the bearing capacity of the other three bolts during detection is reduced.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. The anchoring safety detection method for the anchoring part of the overhead line system suspension post is characterized in that the method is used for detecting the anchoring force of the anchoring part on a bottom plate of the overhead line system, the used device is an auxiliary device, the auxiliary device comprises a first supporting part, a second supporting part and a leveling mechanism, the first supporting part is of an annular structure, the second supporting part extends outwards along the radial direction relative to the first supporting part, and a plurality of second supporting parts are circumferentially distributed along the first supporting part so that the auxiliary device forms an axisymmetric structure; one end of the second supporting part, which is far away from the first supporting part, is provided with a prefabricated hole; the leveling mechanism is fixed on the second supporting part through a prefabricated hole; the leveling mechanisms are respectively arranged at one end of the second supporting part, which is far away from the first supporting part, and are used for adjusting the parallelism between the second supporting part and the contact net bottom plate; the method specifically comprises the following steps:
s100, coaxially sleeving an auxiliary device outside an anchoring part;
step S200, fixing the detection part of the drawing detector and the anchoring piece coaxially so that the drawing detector is sleeved outside the auxiliary device;
step S300, adjusting the positions of the second supporting parts of the auxiliary device so as to enable at least three second supporting parts to be positioned outside the bottom plate of the overhead line system;
step S400, adjusting a leveling mechanism arranged at a supporting part of an auxiliary device to separate the auxiliary device from a bottom plate of a contact net;
and step S500, screwing the anchor to enable the anchor to be pulled upwards and detecting the anchoring force of the anchor through a pulling detector.
2. The method for detecting the anchoring safety of the catenary davit anchor according to claim 1, wherein the distance from the prefabricated hole to the center of the first support part is greater than the distance from the axis of the anchor to the outer edge of the catenary bottom plate.
3. The method for detecting the anchoring safety of the catenary davit anchor according to claim 2, wherein the auxiliary device and the pull detector are provided with magnetic attraction mechanisms at the end parts close to each other, and the auxiliary device and the pull detector are fixed by the magnetic attraction mechanisms in an adsorption manner.
4. The method for detecting the anchoring safety of the catenary suspension post anchoring member as claimed in claim 3, wherein the magnetic attraction mechanism comprises a plurality of circular magnets, and the plurality of circular magnets are uniformly arranged along the circumferential direction of the first supporting portion.
5. The method for detecting the anchoring safety of the catenary davit anchor as claimed in claim 1, wherein the plurality of second support portions are divided into two groups, wherein the second support portions in the first group are uniformly arranged along the circumferential direction of the first support portions, and the second support portions in the second group are axially and symmetrically arranged with respect to the center line of any one of the second support portions in the first group.
6. The method as claimed in claim 5, wherein the number of the second support portions is five, the number of the second support portions in the first group is three, and the number of the second support portions in the second group is two.
7. The method as claimed in claim 6, wherein the second support portions of the first group and the second group are alternately arranged in a non-overlapping manner.
8. The method as claimed in claim 7, wherein the second support portion is a plate-like structure, and the width of the connection end of the second support portion and the first support portion is greater than the width of the end of the second support portion away from the first support portion.
9. The method for detecting the anchoring safety of the catenary davit anchor as in claim 1, wherein the preformed hole is a threaded hole.
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| CN202110590663.3A CN113324681B (en) | 2021-05-28 | 2021-05-28 | Anchoring safety detection method for overhead contact system davit anchoring part |
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| CN202110590663.3A CN113324681B (en) | 2021-05-28 | 2021-05-28 | Anchoring safety detection method for overhead contact system davit anchoring part |
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| CN113324681B true CN113324681B (en) | 2022-04-26 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202610848U (en) * | 2012-04-01 | 2012-12-19 | 华中科技大学 | Anchor rod drawing instrument auxiliary device |
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