CN211697424U

CN211697424U - Bridge steel wire corrosion resistance test device

Info

Publication number: CN211697424U
Application number: CN202020174610.4U
Authority: CN
Inventors: 阮小丽; 吴澎; 王岑峰; 许均渊; 刘小娴
Original assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Current assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-10-16
Anticipated expiration: 2030-02-14

Abstract

A bridge steel wire anti-corrosion performance test device comprises a salt spray corrosion test box body, wherein an open box is arranged inside the salt spray corrosion test box body, the open box is upwards opened, a lifting device is arranged inside the salt spray corrosion test box body, a limiting component is arranged on one side, away from the lifting device, of the open box, and the bottom end of the limiting component is fixedly connected with the inner wall of the salt spray corrosion test box body; the inner wall of the salt spray corrosion test box body is fixedly connected with a connecting rod. According to the test device for the corrosion resistance of the bridge steel wire, the steel wire body is stretched through the stretching device, so that the steel wire body is in a tensioning state to simulate the state in the using process, and the accuracy of a test result is improved; weak acid solution is added through the inside with uncovered box, starts the lifting device and drives uncovered box and remove in vertical direction to dissolve the steel wire body in weak acid solution, carry out acid liquid corrosion, and then carry out more comprehensive corrosion protection performance test to the steel wire.

Description

Bridge steel wire corrosion resistance test device

Technical Field

The utility model relates to a test device field especially relates to a bridge steel wire corrosion resistance test device.

Background

The steel wire is one of four major varieties of steel plate, pipe, shape and wire, and is a reprocessed product made by cold drawing hot rolled wire rod, and some steel wires are applied to cable-stayed bridges.

The anti-corrosion performance of steel wire directly influences the life of bridge, when carrying out anti-corrosion test to the bridge steel wire, directly place the steel wire in the salt spray corrosion test incasement and carry out corrosion test usually, only through placing the steel wire, can't accomplish the state when the tensioning of true cable-stay bridge goes up the steel wire for there is the deviation in the test result, and salt spray corrosion test case can only carry out the smog corrosion test simultaneously, and is comparatively single, can't accomplish more comprehensive experiment.

In order to solve the problem, the application provides a bridge steel wire corrosion resistance test device.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In order to solve the technical problems existing in the background technology, the utility model provides a testing device for the corrosion resistance of a bridge steel wire, which stretches a steel wire body through a stretching device, so that the steel wire body is in a tensioning state to simulate the state in the use process, thereby increasing the accuracy of the test result; weak acid solution is added through the inside with uncovered box, starts the lifting device and drives uncovered box and remove in vertical direction to dissolve the steel wire body in weak acid solution, carry out acid liquid corrosion, and then carry out more comprehensive corrosion protection performance test to the steel wire.

(II) technical scheme

In order to solve the problems, the utility model provides a test device for corrosion resistance of bridge steel wires, which comprises a salt spray corrosion test box body, wherein an open box is arranged inside the salt spray corrosion test box body, the open box is upwards opened, a lifting device is arranged inside the salt spray corrosion test box body, one side of the open box, which is far away from the lifting device, is provided with a limiting component, and the bottom end of the limiting component is fixedly connected with the inner wall of the salt spray corrosion test box body;

the inner wall of the salt spray corrosion test box body is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a supporting plate, two groups of stretching devices are arranged on the supporting plate and are symmetrical with the vertical central axis of the supporting plate, and the two groups of stretching devices are connected with a steel wire body in a hanging mode.

Preferably, the lifting device comprises electric putter, branch and connecting plate, one side of connecting plate and the outer wall fixed connection of uncovered box, the spacing groove has been seted up to the inside of connecting plate, the outer wall of branch cup joints with the inner wall activity of spacing groove, electric putter's bottom and the inner wall fixed connection of salt fog corrosion test case body, the flexible end of salt fog corrosion test case body and the bottom fixed connection of branch.

Preferably, the stretching device comprises a hydraulic cylinder, a pull rod and a hook, a long opening is formed in the middle of the supporting plate in the horizontal direction, the hydraulic cylinder is horizontally installed at the top of the supporting plate, the bottom end of the pull rod penetrates through the long opening and is in sliding connection with the inner wall of the long opening, the end portion of a push rod of the hydraulic cylinder is fixedly connected with the outer wall of the pull rod, the hook is fixedly installed on the outer wall of the pull rod and located below the supporting plate, and the steel wire body is connected to the hook in a hanging mode.

Preferably, spacing subassembly comprises sleeve pipe, gag lever post and fixed block, fixed block fixed mounting is on the outer wall of uncovered box, the bottom fixed connection of sheathed tube top and fixed block, the bottom of gag lever post and the inner wall fixed connection of salt fog corrosion test box body, the top of gag lever post stretches into sheathed tube inside to with sheathed tube inner wall sliding connection.

Preferably, the electric push rod is coated with an anti-corrosion paint.

The above technical scheme of the utility model has following profitable technological effect:

by hanging the steel wire body on the hook and starting the hydraulic cylinder, the driving rod of the hydraulic cylinder is contracted to drive the pull rod to move towards one side far away from the vertical central axis of the supporting plate, further stretching the steel wire body to simulate the tensioning degree of the steel wire body in the real use environment, so that the steel wire body is subjected to a corrosion test in a tensioned state, further increasing the authenticity of the test result, by starting the electric push rod, the electric push rod drives the end part of the telescopic end to extend to drive the connecting plate and the open box to move towards the supporting plate in the vertical direction, the open box drives the sleeve to move along the outer wall of the limiting rod while moving in the vertical direction, so that the open box can stably move in the vertical direction until the open box moves to the outer side of the steel wire body, and adding a weakly acidic liquid into the open box, and further simulating a real outdoor environment to test the corrosion resistance of the steel wire body.

Drawings

Fig. 1 is the utility model provides a bridge steel wire corrosion resistance test device's schematic structure diagram.

Fig. 2 is the utility model provides a overlook schematic structure of backup pad among bridge steel wire corrosion resistance test device.

Fig. 3 is the utility model provides a connecting plate's upward view structure schematic diagram among bridge steel wire corrosion resistance test device.

Fig. 4 is the utility model provides a structure schematic diagram is looked sideways at to pull rod among bridge steel wire corrosion resistance test device.

Fig. 5 is the utility model provides a spacing subassembly's among bridge steel wire corrosion resistance test device schematic structure diagram.

Fig. 6 is the utility model provides a lifting device's among bridge steel wire corrosion resistance test device schematic structure.

Reference numerals: 1. a salt spray corrosion test box body; 2. an open box; 3. a lifting device; 31. an electric push rod; 32. a strut; 33. a connecting plate; 4. a limiting component; 41. a sleeve; 42. a limiting rod; 43. a fixed block; 5. a connecting rod; 6. a support plate; 7. a stretching device; 71. a hydraulic cylinder; 72. a pull rod; 73. hooking; 8. the steel wire body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-6, the utility model provides a test device for corrosion resistance of bridge steel wire, which comprises a salt spray corrosion test box body 1, wherein an open box 2 is arranged inside the salt spray corrosion test box body 1, the open box 2 forms an opening upwards, a lifting device 3 is arranged inside the salt spray corrosion test box body 1, a limiting component 4 is arranged on one side of the open box 2 away from the lifting device 3, and the bottom end of the limiting component 4 is fixedly connected with the inner wall of the salt spray corrosion test box body 1;

the inner wall fixedly connected with connecting rod 5 of salt fog corrosion test case body 1, the other end fixedly connected with backup pad 6 of connecting rod 5 set up two sets of stretching device 7 in backup pad 6, and two sets of stretching device 7 have hung steel wire body 8 with backup pad 6's vertical axis symmetry on two sets of stretching device 7.

In an optional embodiment, lifting device 3 comprises electric putter 31, branch 32 and connecting plate 33, one side of connecting plate 33 and the outer wall fixed connection of uncovered box 2, the spacing groove has been seted up to the inside of connecting plate 33, the outer wall of branch 32 cup joints with the inner wall activity of spacing groove, electric putter 31's bottom and the inner wall fixed connection of salt fog corrosion test case body 1, the flexible end of salt fog corrosion test case body 1 and the bottom fixed connection of branch 32, through inserting branch 32 to the inside spacing groove of connecting plate 33, and then be convenient for separate branch 32 and connecting plate 33, be convenient for change uncovered box 2 if necessary.

In an alternative embodiment, the stretching device 7 is composed of a hydraulic cylinder 71, a pull rod 72 and a hook 73, a long opening is formed in the middle of the supporting plate 6 in the horizontal direction, the hydraulic cylinder 71 is horizontally installed at the top of the supporting plate 6, the bottom end of the pull rod 72 penetrates through the long opening and is in sliding connection with the inner wall of the long opening, the end of a push rod of the hydraulic cylinder 71 is fixedly connected with the outer wall of the pull rod 72, the hook 73 is fixedly installed on the outer wall of the pull rod 72 and is located below the supporting plate 6, and the steel wire body 8 is hung on the hook 73.

In an optional embodiment, the limiting component 4 is composed of a sleeve 41, a limiting rod 42 and a fixing block 43, the fixing block 43 is fixedly installed on the outer wall of the open box 2, the top end of the sleeve 41 is fixedly connected with the bottom of the fixing block 43, the bottom end of the limiting rod 42 is fixedly connected with the inner wall of the salt spray corrosion test box body 1, the top end of the limiting rod 42 extends into the sleeve 41 and is slidably connected with the inner wall of the sleeve 41, when the sleeve 41 moves along with the open box 2 in the vertical direction, the sleeve 41 moves in the vertical direction along the limiting rod 42, and then a stable effect is achieved on the position of the open box 2 in the horizontal direction, so that the open box 2 stably moves in the vertical direction.

In an alternative embodiment, the power push rod 31 is coated with an anti-corrosion paint so that the power push rod 31 can be used for a long time.

In the utility model, by hanging the steel wire body 8 on the hook 73, by starting the hydraulic cylinder 71, the driving rod of the hydraulic cylinder 71 is contracted to drive the pull rod 72 to move towards one side far away from the vertical central axis of the supporting plate 6, thereby stretching the steel wire body 8, so as to simulate the tensioning degree of the steel wire body 8 in the real use environment, so that the steel wire body 8 is subjected to corrosion test in the tensioning state, thereby increasing the authenticity of the test result, by starting the electric push rod 31, the electric push rod 31 drives the end part of the telescopic end to extend to drive the connecting plate 33 and the open box 2 to move towards the supporting plate 6 in the vertical direction, the open box 2 drives the sleeve 41 to move along the outer wall of the limiting rod 42 while moving in the vertical direction, thereby the open box 2 stably moves in the vertical direction, until the open box 2 moves to the outer side of the steel wire body 8, weakly acidic liquid, and then simulate real outdoor environment to test the corrosion resistance of the steel wire body 8.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a bridge steel wire corrosion resistance test device, includes salt spray corrosion test case body (1), its characterized in that: an open box (2) is arranged inside the salt spray corrosion test box body (1), the open box (2) is upward to form an opening, a lifting device (3) is arranged inside the salt spray corrosion test box body (1), a limiting component (4) is arranged on one side, far away from the lifting device (3), of the open box (2), and the bottom end of the limiting component (4) is fixedly connected with the inner wall of the salt spray corrosion test box body (1);

the inner wall of the salt spray corrosion test box body (1) is fixedly connected with a connecting rod (5), the other end of the connecting rod (5) is fixedly connected with a supporting plate (6), two groups of stretching devices (7) are arranged on the supporting plate (6), the two groups of stretching devices (7) are symmetrical with the vertical central axis of the supporting plate (6), and a steel wire body (8) is hung on the two groups of stretching devices (7).

2. The bridge steel wire corrosion resistance test device according to claim 1, wherein the lifting device (3) is composed of an electric push rod (31), a support rod (32) and a connecting plate (33), one side of the connecting plate (33) is fixedly connected with the outer wall of the open box (2), a limiting groove is formed in the connecting plate (33), the outer wall of the support rod (32) is movably sleeved with the inner wall of the limiting groove, the bottom of the electric push rod (31) is fixedly connected with the inner wall of the salt spray corrosion test box body (1), and the telescopic end of the salt spray corrosion test box body (1) is fixedly connected with the bottom of the support rod (32).

3. The test device for the corrosion resistance of the steel wire of the bridge according to claim 1, wherein the stretching device (7) comprises a hydraulic cylinder (71), a pull rod (72) and a hook (73), a long opening is formed in the middle of the support plate (6) in the horizontal direction, the hydraulic cylinder (71) is horizontally installed at the top of the support plate (6), the bottom end of the pull rod (72) penetrates through the long opening and is in sliding connection with the inner wall of the long opening, the end of a push rod of the hydraulic cylinder (71) is fixedly connected with the outer wall of the pull rod (72), the hook (73) is fixedly installed on the outer wall of the pull rod (72) and is located below the support plate (6), and the steel wire body (8) is hung on the hook (73).

4. The testing device for the corrosion resistance of the steel wire of the bridge according to claim 1, wherein the limiting component (4) is composed of a sleeve (41), a limiting rod (42) and a fixing block (43), the fixing block (43) is fixedly installed on the outer wall of the open box (2), the top end of the sleeve (41) is fixedly connected with the bottom of the fixing block (43), the bottom end of the limiting rod (42) is fixedly connected with the inner wall of the salt spray corrosion test box body (1), and the top end of the limiting rod (42) extends into the sleeve (41) and is in sliding connection with the inner wall of the sleeve (41).

5. The testing device for the corrosion resistance of the bridge steel wire according to claim 2, wherein the electric push rod (31) is coated with an anti-corrosion paint.