Supporting mechanism for measuring surface friction coefficient of steel rail

Abstract

The utility model relates to the technical field of steel rail detection, in particular to a supporting mechanism for measuring the surface friction coefficient of a steel rail, which comprises a mounting platform, a testing wheel, a clamping arm, a sensing structure, a mounting box, a driving end, a transmission roller, two moving columns and two supporting arms, and the driving end, the transmission roller and the two moving columns are respectively arranged on the mounting box. The transmission roller is fixedly connected with the driving end and located at one end of the driving end, the two moving columns are rotationally connected with the transmission roller and symmetrically arranged at one end of the transmission roller, one end of each supporting arm is fixedly connected with the corresponding moving column and located at one end of the corresponding moving column, and the other end of each supporting arm is fixedly connected with the mounting platform. By means of the structural arrangement, the problems that errors are prone to occurring and the detection efficiency is affected when the steel rail is detected due to the fact that no supporting structure is arranged in the detection process are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail detection technical field especially relates to a kind of support mechanism for steel rail surface friction coefficient determination. BACKGROUND

[0002] At present, in the process of line maintenance in the field of track transportation, various liquid materials such as flaw detection coupling agent, wheel-rail lubricant and the like are inevitably used and remain on the surface of the steel rail. In the northern winter, frost may appear at the tunnel entrance, and in the summer, condensation may appear inside the tunnel. Various pollutants can cause the friction coefficient of the steel rail surface to have a sectional mutation, which threatens the safe operation of the train.

[0003] To solve the above problems, the prior art CN217033561U provides a measuring wheel mechanism of a steel rail surface friction coefficient tester, which comprises a measuring wheel, a brake assembly, a brake force sensor and a mounting platform. The measuring wheel and the brake assembly are fixed on the mounting platform. The measuring wheel axle is parallel to the mounting platform. The fixed shaft of the brake assembly is perpendicular to the mounting platform and in the plane of the brake wheel. The steel rail surface friction coefficient is an important parameter affecting the train traction capacity and braking effect. A simple and rapid field testing instrument is very important to ensure train safety.

[0004] However, in the above-mentioned prior art, no support structure is provided during detection, which leads to errors during detection of the steel rail and affects the detection efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of support mechanism for steel rail surface friction coefficient determination, solve the technical problem that no support structure is provided during detection in the prior art, which leads to errors during detection of the steel rail and affects the detection efficiency.

[0006] In order to achieve the above object, the utility model discloses a kind of support mechanism for steel rail surface friction coefficient determination, including installation platform, test wheel, clamping arm, sensing structure, installation box, driving end, transmission roller, two mobile columns and two support arms, the test wheel is fixedly connected with the installation platform, and located one end of the installation platform, the clamping arm is fixedly connected with the installation platform, and located the upper end of the installation platform, the sensing structure is fixedly connected with the clamping arm, and located one end of the clamping arm, the installation box is fixedly connected with the installation platform, and located the lower end of the installation platform, the driving end, the transmission roller and two mobile columns are respectively arranged on the installation box, the transmission roller is fixedly connected with the driving end, and located one end of the driving end, two mobile columns are rotatably connected with the transmission roller, and symmetrically arranged at one end of the transmission roller, one end of each support arm is fixedly connected with corresponding mobile column, and located one end of corresponding mobile column, another end of each support arm is fixedly connected with the installation platform, and located the lower surface of the installation platform.

[0007] Wherein, the driving end includes servo motor and pivot, the pivot is fixedly connected with the output end of servo motor.

[0008] Wherein, the transmission roller includes connecting shaft and two transmission gears, the connecting shaft is fixedly connected with the pivot, and located one end of the pivot, two transmission gears are fixedly connected with the connecting shaft, and symmetrically arranged at one end of the connecting shaft.

[0009] Wherein, each mobile column includes column body and rack, the column body is slidably connected with the installation box, and located one end of the installation box, the rack is fixedly connected with the column body, and located one end of the column body, the rack is matched with corresponding transmission gear.

[0010] Wherein, each support arm includes support plate and two telescopic rods, the support plate is fixedly connected with the column body, and located the lower end of the column body, one end of two telescopic rods is fixedly connected with the support plate, and symmetrically arranged at one end of the support plate, another end of two telescopic rods is fixedly connected with the installation platform, and symmetrically arranged at one end of the installation platform.

[0011] The utility model discloses a kind of support mechanism for steel rail surface friction coefficient determination, the installation box with the installation platform is fixed connection, and located the lower end of the installation platform, the driving end, the transmission roller and two the mobile column are respectively arranged on the installation box, the transmission roller with the driving end fixed connection, and located one end of the driving end, two the mobile column with the transmission roller rotationally connected, and symmetrically set in one end of the transmission roller, one end of each the support arm with corresponding the mobile column fixed connection, and located one end of corresponding the mobile column, another end of each the support arm with the installation platform fixed connection, and located the lower surface of the installation platform, the driving end drives the transmission roller rotation, the transmission roller drives two the mobile column to move downward on the installation box, two the mobile column respectively drive one end of two the support arm to move downward, to support the installation platform by this method, to effectively solve when detecting, without setting support structure, lead to error when detecting steel rail, affect the problem of detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the structure schematic view of the support mechanism for steel rail surface friction coefficient determination of the utility model.

[0014] Figure 2 It is the front view of the support mechanism for steel rail surface friction coefficient determination of the utility model.

[0015] Figure 3 It is the structure schematic view of A-A line of the utility model. Figure 2

[0016] Figure 4 It is the structure schematic view of transmission gear of the utility model.

[0017] 101-installation platform, 102-test wheel, 103-clamping arm, 104-sensing structure, 105-installation box, 106-servo motor, 107-rotating shaft, 108-connecting shaft, 109-transmission gear, 110-cylinder, 111-rack, 112-supporting plate, 113-telescopic rod. DETAILED DESCRIPTION

[0018] ​The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0019] Please refer to Figures 1-4 , wherein Figure 1 is a structural schematic view of the support mechanism for measuring the friction coefficient of the surface of a steel rail, Figure 2 is a front view of the support mechanism for measuring the friction coefficient of the surface of a steel rail, Figure 3 is a structural schematic view of the support mechanism for measuring the friction coefficient of the surface of a steel rail, Figure 2 is a structural schematic view of the support mechanism for measuring the friction coefficient of the surface of a steel rail, Figure 4 is a structural schematic view of the transmission gear.

[0020] The present application provides a kind of support mechanism for measuring the friction coefficient of the surface of steel rail, including installation platform 101, test wheel 102, clamping arm 103, sensing structure 104, installation box 105, servo motor 106, shaft 107, connecting shaft 108, transmission gear 109, cylinder 110, rack 111, support plate 112 and telescopic rod 113, the foregoing scheme solves when detecting, without setting support structure, it leads to error when detecting steel rail, affect detection efficiency problem.

[0021] For this specific embodiment, the test wheel 102 is fixedly connected with the mounting platform 101 and located at one end of the mounting platform 101, the clamping arm 103 is fixedly connected with the mounting platform 101 and located at the upper end of the mounting platform 101, the sensing structure 104 is fixedly connected with the clamping arm 103 and located at one end of the clamping arm 103, the mounting box 105 is fixedly connected with the mounting platform 101 and located at the lower end of the mounting platform 101, the drive end, the transmission roller and two moving columns are respectively arranged on the mounting box 105, the transmission roller is fixedly connected with the drive end and located at one end of the drive end, two moving columns are rotatably connected with the transmission roller and symmetrically arranged at one end of the transmission roller, one end of each support arm is fixedly connected with the corresponding moving column and located at one end of the corresponding moving column, the other end of each support arm is fixedly connected with the mounting platform 101 and located on the lower surface of the mounting platform 101, the test wheel 102 is used to test the steel rail, the sensing structure 104 transmits the test data, when support is needed, the drive end drives the transmission roller to rotate, the transmission roller drives two moving columns to move downward on the mounting box 105, and two moving columns drive one end of two support arms to move downward respectively, so as to support the mounting platform 101, thereby stably supporting the mounting platform 101 and improving the detection efficiency.

[0022] The drive end comprises a servo motor 106 and a rotating shaft 107, the rotating shaft 107 is fixedly connected with the output end of the servo motor 106, and the servo motor 106 drives the rotating shaft 107 to rotate.

[0023] Secondly, the transmission roller comprises a connecting shaft 108 and two transmission gears 109, the connecting shaft 108 is fixedly connected with the rotating shaft 107 and located at one end of the rotating shaft 107, and two transmission gears 109 are fixedly connected with the connecting shaft 108 and symmetrically arranged at one end of the connecting shaft 108, the rotating shaft 107 drives the connecting shaft 108 to rotate, and the connecting shaft 108 drives two transmission gears 109 to rotate.

[0024] Meanwhile, each moving column comprises a column body 110 and a rack 111, the column body 110 is slidingly connected with the mounting box 105 and located at one end of the mounting box 105, the rack 111 is fixedly connected with the column body 110 and located at one end of the column body 110, the rack 111 is matched with the corresponding transmission gear 109, the transmission gear 109 drives the rack 111 to move, and the rack 111 drives the column body 110 to move.

[0025] In addition, each of the support arms comprises a support plate 112 and two telescopic rods 113, one end of the telescopic rods 113 is fixedly connected with the support plate 112 and symmetrically arranged at one end of the support plate 112, and the other end of the telescopic rods 113 is fixedly connected with the mounting platform 101 and symmetrically arranged at one end of the mounting platform 101, the column 110 drives the support plate 112 to move, the support plate 112 shrinks the two telescopic rods 113, and the two telescopic rods 113 stabilize the support plate 112.

[0026] When the support mechanism for measuring the friction coefficient of a rail surface is used, when support is needed, the servo motor 106 drives the rotating shaft 107 to rotate, the rotating shaft 107 drives the connecting shaft 108 to rotate, the connecting shaft 108 drives the two transmission gears 109 to rotate, the two transmission gears 109 respectively drive the two racks 111 to move downward, the two racks 111 respectively drive the two columns 110 to move downward on the mounting box 105, and the two columns 110 respectively drive the two support plates 112 to move downward, each of the support plates 112 stretches the corresponding two telescopic rods 113 until the two support plates 112 contact the ground, so as to stably support the mounting platform 101 and improve the detection efficiency.

[0027] The above only discloses a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right scope, the person skilled in the art can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes made according to the utility model claim still belong to the range covered by the utility model.

Claims

1. A support mechanism for measuring the friction coefficient of a rail surface, comprising a mounting platform, a test wheel, a clamping arm and a sensing structure, the test wheel is fixedly connected with the mounting platform and located at one end of the mounting platform, the clamping arm is fixedly connected with the mounting platform and located at the upper end of the mounting platform, and the sensing structure is fixedly connected with the clamping arm and located at one end of the clamping arm, characterized in that, it further comprises a mounting box, a driving end, a transmission roller, two moving columns and two support arms, the mounting box is fixedly connected with the mounting platform and located at the lower end of the mounting platform, the driving end, the transmission roller and two moving columns are arranged on the mounting box, the transmission roller is fixedly connected with the driving end and located at one end of the driving end, two moving columns are rotatably connected with the transmission roller and symmetrically arranged at one end of the transmission roller, one end of each support arm is fixedly connected with the corresponding moving column and located at one end of the corresponding moving column, and the other end of each support arm is fixedly connected with the mounting platform and located at the lower surface of the mounting platform.

2. The support mechanism for measuring the friction coefficient of a rail surface according to claim 1, characterized in that, the driving end comprises a servo motor and a rotating shaft, and the rotating shaft is fixedly connected with the output end of the servo motor.

3. The support mechanism for measuring the friction coefficient of a rail surface according to claim 2, characterized in that, the transmission roller comprises a connecting shaft and two transmission gears, the connecting shaft is fixedly connected with the rotating shaft and located at one end of the rotating shaft, and two transmission gears are fixedly connected with the connecting shaft and symmetrically arranged at one end of the connecting shaft.

4. The support mechanism for measuring the friction coefficient of a rail surface according to claim 3, characterized in that, each moving column comprises a column body and a rack, the column body is slidingly connected with the mounting box and located at one end of the mounting box, the rack is fixedly connected with the column body and located at one end of the column body, and the rack is matched with the corresponding transmission gear.

5. The support mechanism for measuring the friction coefficient of a rail surface according to claim 4, characterized in that, each support arm comprises a support plate and two telescopic rods, the support plate is fixedly connected with the column body and located at the lower end of the column body, one end of each telescopic rod is fixedly connected with the support plate and symmetrically arranged at one end of the support plate, and the other end of each telescopic rod is fixedly connected with the mounting platform and symmetrically arranged at one end of the mounting platform. ​ ​ ​ ​ ​

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