A contact net post vertical loading test system

Abstract

The application provides a contact net support post vertical loading test system, wherein the detection area is used for fixing the product to be detected, the middle area is provided with a middle assembly, the middle assembly is provided with a sliding assembly which is slidably arranged on the middle assembly, the bottom of the sliding assembly is provided with a fixed pulley and a movable pulley, the power area is provided with an electric guide chain support assembly, the bottom of the electric guide chain support assembly is provided with two ground fixed pulleys, the lower side of the top of the electric guide chain support assembly is provided with two groups of electric guide chains, one end of a steel wire rope connected with the top detection stress point of the product to be detected, the other end of the steel wire rope passes through the fixed pulley of the sliding assembly and a ground fixed pulley in sequence, and is connected with one electric guide chain which is arranged on the lower side of the top of the electric guide chain support assembly, and the other group of electric guide chains, the ground fixed pulley and the movable pulley are used as backup. The contact net support post vertical loading test system can realize the vertical loading test of the contact net support post, and can realize the simultaneous detection of two detection points.

Description

Technical Field

[0001] The invention relates to the technical field of railway construction, in particular to a vertical loading test system for a contact network pillar. Background Art

[0002] At present, my country's railway construction is booming. By the end of 2023, electrified railways in my country accounted for 73.8% of the total railway mileage. Electrified railways are the main form of current railway construction.

[0003] In electrified railway construction, catenary posts are crucial support devices for the electrified railway catenary system. Commonly used catenary posts include concrete posts and steel posts. Concrete posts include transverse web prestressed concrete posts and circular prestressed concrete posts. Steel posts include H-shaped steel posts, square steel tubular posts, circular steel tubular posts, and lattice steel posts. According to standards, catenary posts must undergo mechanical property testing in batches after production or upon shipment to verify that their capacity meets requirements. Vertical loading tests are used for the mechanical property testing of some concrete posts and all steel posts.

[0004] The vertical loading test refers to the testing of the contact network pillars in accordance with the installation method and stress conditions of the product on the railway line, simulating similar working conditions. During the test, the pillars are fixed on the inspection base, and auxiliary tooling is used to simulate the actual stress conditions of the pillars. The graded loading test is carried out according to the relevant force values ​​specified in the standard. The vertical loading device of the existing technology cannot meet the stress detection test of two detection points of the product. If it is to be realized, it requires frequent disassembly and assembly, which is very complicated and inefficient. Therefore, it is very necessary to design a vertical loading test system for contact network pillars. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical loading test system for a contact network pillar, which can realize a vertical loading test of a contact network pillar and can realize simultaneous detection of two detection points, thereby improving detection efficiency and facilitating use.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A vertical loading test system for a contact network pillar comprises: an inspection area, an intermediate area and a power area arranged in sequence, wherein the inspection area is provided with a fixed component for a product to be inspected, and the fixed component for a product to be inspected is used to fix the product to be inspected, the intermediate area is provided with an intermediate component, a sliding component is slidingly provided on the intermediate component, a fixed pulley and a movable pulley are provided at the bottom of the sliding component, an electric guide chain bracket component is provided in the power area, two ground fixed pulleys are provided at the bottom of the electric guide chain bracket component, and two sets of electric guide chain bracket components are provided on the lower side of the top of the electric guide chain bracket component. Dynamic guide chain, the top detection force point of the product to be tested is connected to one end of a steel wire rope, the other end of the steel wire rope passes through the fixed pulley of the sliding assembly and a ground fixed pulley at the bottom of the electric guide chain bracket assembly in sequence, and is connected to an electric guide chain set on the lower side of the top of the electric guide chain bracket assembly. Another set of electric guide chains, ground fixed pulleys and the movable pulley are used as backup, and are used for force measurement when there are two detection force points on the top of the product to be tested. The bottom of the electric guide chain bracket assembly is connected to two pull wires of the middle assembly, which are used as pull-down anchor lines for fixation.

[0008] Optionally, the product to be inspected fixing component includes a product to be inspected fixing base component, an embedded base and a conversion base. The product to be inspected fixing base component is fixed on the ground, the embedded base is fixed on the product to be inspected fixing base component, and the conversion base is set on the top of the embedded base. The conversion base is used to fix the product to be inspected.

[0009] The top of the intermediate column is provided with an intermediate column top fixed pulley, and the bottom side of the intermediate column is provided with an intermediate column bottom fixed pulley and a motor. The motor is connected to one end of a steel wire rope, and the other end of the steel wire rope passes through the intermediate column bottom fixed pulley and the intermediate column top fixed pulley in sequence, and is connected to the top of the sliding assembly, so that the steel wire rope is driven by the motor to move the sliding assembly up and down along the intermediate column, so as to realize the parallelism of the sliding assembly and the product to be inspected. The other side of the intermediate column is provided with the intermediate column support member, so as to support the intermediate column.

[0010] Optionally, the sliding assembly includes a C-shaped steel and a sliding body, wherein three C-shaped steels are provided, and the three C-shaped steels are slidably connected to the middle column, and the backs of the three C-shaped steels are connected to the sliding body, the fixed pulley is provided on the back of the lowermost C-shaped steel, the reinforcing channel steel is provided at the bottom of the sliding body, the reinforcing channel steel is provided with a long hole, and the movable pulley is slidably connected through the long hole, and reinforcing strength plates are provided between the sliding body and the backs of the three C-shaped steels, the reinforcement is provided on the sliding body, a circular hole is provided on the upper side of the sliding body, and a reinforcing steel plate is provided on the circumference of the circular hole, and the steel wire rope passing through the fixed pulley at the top of the middle column is fixedly connected to the inside of the circular hole, and a plurality of hollow holes are provided on the sliding body to reduce its own weight, and the reinforcing angle steel is provided on both sides of the C-shaped steel.

[0011] The lifting mechanism is connected with the support frame of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply of the lifting power supply

[0012] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the vertical loading test system for contact network pillars provided by the present invention can be applied to the inspection and testing of various types of concrete and steel structure pillar products by replacing the conversion base. The inclined tension on the ground can be converted into horizontal tension in the air through the sliding component, which can simultaneously meet the force detection test of two detection points of the product. The position of the movable pulley is adjusted to meet the test of detection points at different positions, avoiding disassembly in the middle of the test of two detection points, which can effectively improve the test efficiency and reduce labor intensity. An electric guide chain is used as the power source of the test system, and the force value can be controlled by a mechanical sensor to achieve precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in 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 paying any creative work.

[0014] Figure 1 This is a schematic structural diagram of a vertical loading test system for a contact network support according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the embedded base structure;

[0016] Figure 3 Schematic diagram of the conversion base structure;

[0017] Figure 4 It is a schematic diagram of the intermediate component structure;

[0018] Figure 5 It is a front view of the sliding assembly structure;

[0019] Figure 6 It is a side view of the sliding assembly structure;

[0020] Figure 7 This is the main view of the electric chain guide bracket assembly structure;

[0021] Figure 8 It is a top view of the electric chain guide bracket assembly structure.

[0022] Figure markings: 1. Basic parts for fixing the product to be inspected; 2. Embedded base; 3. Conversion base; 4. Product to be inspected; 5. Steel wire rope; 6. Basic parts for fixing the intermediate column; 7. Intermediate column; 8. Support part of the intermediate column; 9. Sliding assembly; 10. Fixed pulley at the top of the intermediate column; 11. Motor; 12. Fixed pulley at the bottom of the intermediate column; 13. Basic parts for fixing the bracket; 14. Ground anchor; 15. Fixed pulley on the ground; 16. Lifting ring; 17. Electric guide chain; 18. Main body of the vertical pole; 19. Pull wire; 20. Sliding body; 21. C-shaped steel; 22. Reinforced strong plate; 23. Reinforcement; 24. Fixed pulley; 25. Movable pulley; 26. Reinforced channel steel; 27. Reinforced steel plate; 28. Reinforced angle steel; 29. ​​Top connecting plate; 30. Connecting stiffening plate; 31. Top platform; 32. Bottom horizontal support rod; 33. Bottom support plate. DETAILED DESCRIPTION

[0023] The purpose of the present invention is to provide a vertical loading test system for a contact network pillar, which can realize a vertical loading test of a contact network pillar and can realize simultaneous detection of two detection points, thereby improving detection efficiency and facilitating use.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown, the contact network pillar vertical loading test system provided by the embodiment of the present invention includes: an inspection area, an intermediate area and a power area arranged in sequence, the inspection area is provided with a product to be inspected fixing component, the product to be inspected fixing component is used to fix the product to be inspected 4, the intermediate area is provided with an intermediate component, a sliding component 9 is slidingly provided on the intermediate component, a fixed pulley 24 and a movable pulley 25 are provided at the bottom of the sliding component 9, an electric guide chain bracket assembly is provided in the power area, two ground fixed pulleys 15 are provided at the bottom of the electric guide chain bracket assembly, and two groups of electric guide chain brackets are provided on the lower side of the top. Dynamic guide chain 17, the top detection force point of the product to be tested 4 is connected to one end of a steel wire rope 5, and the other end of the steel wire rope 5 passes through the fixed pulley 24 of the sliding assembly 9 and a ground fixed pulley 15 at the bottom of the electric guide chain bracket assembly in sequence, and is connected to an electric guide chain 17 set on the lower side of the top of the electric guide chain bracket assembly. Another set of electric guide chains 17, ground fixed pulleys 15 and the movable pulley 25 are used as backup, and are used for force measurement when there are two detection force points on the top of the product to be tested 4. The bottom of the electric guide chain bracket assembly is connected to two pull wires of the middle assembly, which are used as pull-down anchor lines for fixation.

[0026] The product to be inspected fixing assembly includes a product to be inspected fixing base 1, an embedded base 2 and a conversion base 3. The product to be inspected fixing base 1 is fixedly set on the ground, the embedded base 2 is fixedly set on the product to be inspected fixing base 1, and the conversion base 3 is set on the top of the embedded base 2. The conversion base 3 is used to fix the product to be inspected 4;

[0027] The fixed foundation 1 of the product to be tested is a reinforced concrete structure, which is the main load-bearing structure of the product to be tested 4, ensuring that the ground does not deform during the test. The embedded base 2 can be made of 40mm thick steel plate, and 16 φ45 internal threaded holes are opened on the plate for connecting the conversion base 3. The conversion base 3 is an intermediate device for connecting the product to be tested 4 and the embedded base 2. It is usually made of 40mm thick steel plate. The plate body has several connecting holes according to the position and size of the flange holes of various products. There are many types. This application provides an embodiment of the embedded base 2 and the conversion base 3, such as Figure 2 and Figure 3 shown.

[0028] like Figure 1 and Figure 4As shown, the intermediate component includes an intermediate column 7, an intermediate column fixing base member 6, embedded bolts, an intermediate column support member 8, a fixed pulley 10 at the top of the intermediate column, a fixed pulley 12 at the bottom of the intermediate column and a motor 11. The intermediate column fixing base member 6 is fixedly arranged on the right side of the fixed base member 1 of the product to be inspected. The embedded bolts are arranged on the intermediate column fixing base member 6. The intermediate column 7 is fixed to the intermediate column fixing base member 6 through the embedded bolts and the flange at the bottom of the intermediate column 7. The sliding assembly 9 is slidably connected to the intermediate column 7. The top of the intermediate column 7 is provided with an intermediate column A top fixed pulley 10 is provided, and a bottom fixed pulley 12 and a motor 11 are provided on one side of the bottom of the intermediate column 7. The motor 11 is connected to one end of a steel wire rope 5. The other end of the steel wire rope 5 passes through the bottom fixed pulley 12 and the top fixed pulley 10 of the intermediate column in sequence, and is connected to the top of the sliding assembly 9. The steel wire rope 5 is driven by the motor 11, and the sliding assembly 9 is moved up and down along the intermediate column 7 to achieve parallelism between the sliding assembly 9 and the product 4 to be inspected. The intermediate column support 8 is provided on the other side of the intermediate column 7 to support the intermediate column 7.

[0029] The intermediate column fixing base 6 is a reinforced concrete structure and is the load-bearing structure of the intermediate column 7. Embedded bolts are embedded in the foundation and extend out of the ground to connect with the flange at the bottom of the intermediate column to fix the intermediate column. The intermediate column can be composed of a column body and a support. The column material specification is GH 240H steel, the support material is φ60 steel pipe, and the bottom is a flange design, including a flange base plate and a stiffening plate.

[0030] like Figure 5 and Figure 6 As shown, the sliding assembly 9 includes a C-shaped steel 21 and a sliding body 20. The C-shaped steel 21 is provided with three, and the three C-shaped steels 21 are slidably connected to the middle column 7. The backs of the three C-shaped steels 21 are connected to the sliding body 20. The back of the lowermost C-shaped steel 21 is provided with the fixed pulley 24. The bottom of the sliding body 20 is provided with the reinforced channel steel 26. The reinforced channel steel 26 is provided with a long hole, and the movable pulley 25 is slidably connected to the long hole. A reinforcing plate 22 is provided between the sliding body 20 and the back of the three C-shaped steels 21. The reinforcing member 23 is provided on the sliding body 20. A circular hole is provided on the upper side of the sliding body 20. A reinforcing steel plate 27 is provided on the circumference of the circular hole. The steel wire rope 5 passing through the fixed pulley 10 at the top of the middle column is fixedly connected to the inside of the circular hole. A plurality of regular pentagonal hollow holes are provided on the sliding body 20 to reduce its own weight. The reinforcing angle steel 28 is provided on both sides of the C-shaped steel 21.

[0031] When in use, the motor 11 drives the sliding assembly 9 to move up and down through the steel wire rope 5, the fixed pulley 10 at the top of the middle column, and the fixed pulley 12 at the bottom of the middle column.

[0032] like Figure 7 and Figure 8 As shown, the electric chain guide bracket assembly includes a bracket fixing base member 13, a ground anchor 14, a pole body 18, a top connecting plate 29, a connecting stiffening plate 30, a bottom support plate 33 and a top platform 31. The bracket fixing base member 13 is set on the right side of the intermediate column fixing base member 6, three pole bodies 18 are set on the bracket fixing base member 13, and the top of the three pole bodies 18 is set with the top connecting plate 29. The connecting stiffening plate 30 is set between the pole body 18 and the top connecting plate 29. The top connecting plate 29 The top platform 31 is provided at the top, a lifting ring 16 is provided at the top of the top platform 31, two lifting rings 16 are provided at the bottom of the top platform 31, and an electric guide chain 17 is provided on each of the two lifting rings 16 provided at the bottom. The bottom transverse support rod 32 is provided between each of the three vertical pole bodies 18, and three ground anchors 14 are provided on the bracket fixing base member 13, one of the ground anchors 14 is connected to the two pull wires 19 of the middle column 7 and is used as a pull-down anchor line for fixing. The other two ground anchors 14 are respectively connected to a ground fixed pulley 15;

[0033] The material of the upright pole body 18 is GH 240H steel.

[0034] The principle of use of this application is introduced. This application can realize the detection of one stress point of the product 4 to be tested, and can also realize the detection of two stress points. In the test preparation stage, one end of a sufficiently long steel wire rope 5 is connected to the stress point at the top of the product 4 to be tested, and the other end of the steel wire rope passes through the fixed pulley 24 in the sliding assembly 9 of the intermediate column 7, and then connects to the electric guide chain 17 through the fixed pulley 15 on the ground of the power area;

[0035] During the experiment, a conversion base 3 of the corresponding model to the product 4 to be tested is selected and fixed on the embedded base 2. The product 4 to be tested is hoisted and fixed on the conversion base 3. The sliding assembly 9 is adjusted by the motor 11 to make its height reach the same height as the force point of the product 4 to be tested, so that the wire rope 5 is in a horizontal position. The other end of the wire rope 5 generates tension through the electric guide chain 7. The force sensor is controlled to conduct the test according to the force value specified in the standard.

[0036] For special pillars, if two stress points need to be tested, two steel ropes need to be connected during the test preparation stage. One of the steel ropes is connected in the above-mentioned manner, and one end of the other steel rope is connected to the stress point of the product to be tested 4, and the other end is connected to another electric guide chain 17 through a movable pulley 25 in the sliding assembly 9 and another ground fixed pulley 15 in the power area. The two detection points can be connected at the same time to conduct tests in sequence without disassembling the product to be tested in the middle to replace the steel rope connection point. The movable pulley 25 can adjust the distance according to the position of the detection point to ensure that the force application angle of the steel rope meets the requirements. The electric guide chain 17 is used as the power source of the test system, and the force value can be controlled by a mechanical sensor to achieve precise control.

[0037] This application can also provide multiple electric guide chains and ground fixed pulleys according to specific needs, thereby achieving simultaneous detection of multiple test points on the product to be inspected.

[0038] The present invention provides a vertical loading test system for contact network pillars. This test system can be applied to the inspection and testing of various types of concrete and steel structure pillar products by replacing the conversion base. The inclined tension on the ground can be converted into horizontal tension in the air through the sliding component, which can simultaneously meet the force detection test of two detection points of the product. The position of the movable pulley is adjusted to meet the test of detection points at different positions, avoiding disassembly in the middle of the test of two detection points, which can effectively improve the test efficiency and reduce labor intensity. An electric guide chain is used as the power source of the test system, and the force value can be controlled by a mechanical sensor to achieve precise control.

[0039] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A vertical loading test system for contact network pillars, characterized in that: include: Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location. The product to be inspected fixing assembly includes a product to be inspected fixing base member, an embedded base, and a conversion base. The product to be inspected fixing base member is fixedly arranged on the ground, the embedded base is fixedly arranged on the product to be inspected fixing base member, and the conversion base is arranged on the top of the embedded base. The conversion base is used to fix the product to be inspected; The top of the intermediate column is provided with an intermediate column top fixed pulley, and the bottom side of the intermediate column is provided with an intermediate column bottom fixed pulley and a motor. The motor is connected to one end of a steel wire rope, and the other end of the steel wire rope passes through the intermediate column bottom fixed pulley and the intermediate column top fixed pulley in sequence and is connected to the top of the sliding assembly, and the steel wire rope is driven by the motor to enable the sliding assembly to move up and down along the intermediate column, so as to realize the parallelism of the sliding assembly and the product to be inspected. The other side of the intermediate column is provided with the intermediate column support member, which is used to support the intermediate column.

2. The vertical loading test system for contact network pillars according to claim 1, characterized in that: The sliding assembly includes a C-shaped steel and a sliding body, wherein the three C-shaped steels are provided, and the three C-shaped steels are slidably connected to the middle column, and the backs of the three C-shaped steels are connected to the sliding body, the fixed pulley is provided on the back of the lowest C-shaped steel, and a reinforcing channel steel is provided at the bottom of the sliding body, and the reinforcing channel steel is provided with a long hole, and the movable pulley is slidably connected through the long hole, and a reinforcing strength plate is provided between the sliding body and the backs of the three C-shaped steels, and the reinforcement is provided on the sliding body, and a circular hole is provided on the upper side of the sliding body, and a reinforcing steel plate is provided on the circumference of the circular hole, and the steel wire rope passing through the fixed pulley at the top of the middle column is fixedly connected to the inside of the circular hole, and a plurality of hollow holes are provided on the sliding body to reduce its own weight, and reinforcing angle steels are provided on both sides of the C-shaped steel.

3. The vertical loading test system for contact network pillars according to claim 2, characterized in that: The electric chain guide bracket assembly includes a bracket fixing base component, a ground anchor, a pole body, a top connecting plate, a connecting stiffening plate, a bottom support plate and a top platform, the bracket fixing base component is arranged on the right side of the middle column fixing base component, three pole bodies are arranged on the bracket fixing base component, the top of the three pole bodies is arranged with the top connecting plate, the bottom of the pole body is arranged with the bottom support plate, the connecting stiffening plate is arranged between the pole body and the top connecting plate, the top of the top connecting plate is arranged with the top platform, a lifting ring is arranged on the top of the top platform, two lifting rings are arranged at the bottom of the top platform, and an electric guide chain is respectively arranged on the two lifting rings arranged at the bottom, and bottom transverse support rods are arranged between the three pole bodies, and three ground anchors are arranged on the bracket fixing base component, one of the ground anchors is connected to the two pull wires of the middle column for use as a pull-down anchor line for fixing, and the other two ground anchors are respectively connected to a ground fixed pulley.

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