CN213148170U - Magnetic track testing machine - Google Patents

Abstract

The utility model relates to a magnetic track test machine, comprises a workbench, the rail, testing arrangement, pushing mechanism and two guiding mechanism, the test through-hole link up rail and workstation in upper and lower direction, testing arrangement includes the pulling force piece, spring and force sensor, pulling force piece and force sensor are connected respectively to the upper and lower both ends of spring, the pulling force piece is under the test through-hole, reciprocate and to pass the test through-hole, two guiding mechanism set up the both sides at the rail respectively, guiding mechanism includes movable plate and lifting structure, the movable plate can be at the length direction round trip movement of rail, the lifting structure includes lift cylinder and lifter plate, the lift cylinder is installed on the movable plate, the lifter plate is connected to its push rod, the lift cylinder is used for promoting the lifter plate and reciprocates, pushing mechanism is used for promoting two guiding mechanism's movable plate synchronous movement. The utility model discloses can be automatically quick adjustment magnetic track position, degree of automation is high, detection efficiency is high, simple operation and simple structure.

Description

Magnetic track testing machine

Technical Field

The utility model relates to a track traffic's magnetic track test technical field, especially a magnetic track test machine.

Background

With the rapid development of rail transit such as high-speed trains, subways, light rails and the like, the requirements on the safety, the stability and the response rapidity of train operation are more and more met. The magnetic track is used as an important brake component of rail transit, and the performance of the magnetic track directly influences the safety, the stability and the response rapidity of train operation. The performance of the magnetic track is usually determined by testing through testing equipment, the existing magnetic track testing equipment is usually designed and used by each enterprise, no universal and widely-used magnetic track testing equipment is available, and the equipment usually has the defects of complex structure, low testing efficiency, inconvenient testing operation and the like. Moreover, the magnetic track is bulky and heavy, and it is very difficult to place it in a suitable test position.

Disclosure of Invention

In order to solve the problem, the utility model provides a magnetic track test machine to simplify the structure of magnetic track test equipment and improve efficiency of software testing.

In order to achieve the purpose, the novel magnetic track testing machine is characterized by comprising a workbench, a steel rail, a testing device, a pushing mechanism and two adjusting mechanisms, wherein the steel rail, the testing device, the pushing mechanism and the adjusting mechanisms are arranged on the workbench, a testing through hole penetrates through the steel rail and the workbench in the up-down direction, the testing device is arranged below the workbench and comprises a tension block, a spring and a tension sensor, the upper end and the lower end of the spring are respectively connected with the tension block and the tension sensor, the tension block is arranged under the testing through hole, the tension block can vertically move and can penetrate through the testing through hole, the two adjusting mechanisms are respectively arranged on two sides of the steel rail, each adjusting mechanism comprises a movable plate and a lifting structure, the movable plates are movably arranged on the workbench and can move back and forth in the length direction of the steel rail, and each lifting structure comprises a lifting cylinder and a lifting plate, the lifting cylinder is installed on the moving plate, a push rod of the lifting cylinder is connected with the lifting plate, the lifting cylinder is used for pushing the lifting plate to move up and down, and the pushing mechanism is used for pushing the moving plates of the two adjusting mechanisms to move synchronously.

The utility model provides a magnetic track test machine, lift cylinder promote lifter plate rebound, get up placing the magnetic track lifting on the lifter plate, and pushing mechanism makes the movable plate remove, adjusts the position that is fit for the test to the magnetic track, and later lift cylinder promotes the lifter plate rebound, puts the magnetic track on the rail, just can carry out the rail test, can improve magnetic track detection efficiency greatly by automatic quick adjustment magnetic track position. After the magnetic track position adjustment is good, for the magnetic track circular telegram, the automatic pulling force piece of inhaling after the magnetic track circular telegram, the automatic recovery of spring after the magnetic track outage, the force sensor automated inspection atress condition, magnetic track test machine degree of automation is high, detection efficiency is high, the simple operation, simple structure moreover.

Drawings

FIG. 1 is a schematic diagram of a magnetic track testing machine;

FIG. 2 is a schematic diagram of another view of a magnetic track testing machine;

FIG. 3 is a top view of a magnetic track testing machine;

FIG. 4 is a schematic structural view of the lifting mechanism;

fig. 5 is a schematic diagram of a track testing machine on which a track is placed.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1 to 3, the magnetic track testing machine includes a table 1, a steel rail 2, a testing device, a pushing mechanism, and two adjusting mechanisms, and the steel rail 2, the testing device, the pushing mechanism, and the adjusting mechanisms are disposed on the table 1. The cross section of the steel rail 2 is I-shaped and is used for placing a magnetic track 9 to be tested. The two adjusting mechanisms are respectively arranged at the front side and the rear side of the steel rail 2. Each adjusting mechanism comprises a moving plate 61 and a lifting structure, wherein the moving plate 61 is arranged on two guide columns 12 on the workbench 1, and can move back and forth on the guide columns 12 relative to the workbench 1 and the steel rail 2 in the length direction of the steel rail 2. The lifting structure comprises a lifting cylinder 62 and a lifting plate 63, the lifting cylinder 62 is installed on the moving plate 61, a push rod of the lifting cylinder 62 is connected with the lifting plate 63, and the lifting cylinder 62 is used for pushing the lifting plate 63 to move up and down. Two lifting structures are arranged on each moving plate 61, and the two lifting structures are arranged along the length direction of the steel rail 2. The two lifting structures can enhance the contact area and the supporting force of the lifting plate 63 and the magnetic track 9, and provide stable support for the magnetic track 9.

Referring to fig. 1 and 3, a pushing mechanism is provided on the table 1 for pushing the moving plates 61 of the two adjusting mechanisms to move synchronously. The pushing mechanism comprises a motor 70 arranged on the workbench 1, a front belt transmission mechanism and a rear belt transmission mechanism, and the front belt transmission mechanism and the rear belt transmission mechanism are respectively arranged on the front side and the rear side of the steel rail 2. The front belt transmission mechanism comprises a front driving wheel 71, a front driven wheel 72 and a front belt 73, the front belt 73 is matched with the front driving wheel 71 and the front driven wheel 72, and the front belt 73 is connected with the moving plate 61 positioned on the same side of the steel rail 2. The rear belt transmission mechanism comprises a rear driving wheel 74, a rear driven wheel 75 and a rear belt 76, the rear belt 76 is matched with the rear driving wheel 74 and the rear driven wheel 75, and the rear belt 76 is connected with the moving plate 61 positioned on the same side of the steel rail 2. The motor 70 has a rotation shaft connected to the front driving wheel 71 for driving the front driving wheel 71 to rotate, the front driven wheel 72 and the rear driving wheel 74 are mounted on the same rotation shaft, and the front driven wheel 72 and the rear driving wheel 74 rotate synchronously. The motor 70 is started, the front belt transmission mechanism drives the moving plate 61 located on one side in front of the steel rail 2 to move, the rear driving wheel 74 and the front driven wheel 72 rotate synchronously, the rear belt 76 drives the moving plate 61 located on one side in rear of the steel rail 2 to move, the two moving plates 61 located on one side in front of and behind the steel rail 2 simultaneously move towards one direction at the same speed, and the magnetic tracks 9 placed on the lifting plate 63 are moved together to move the magnetic tracks 9 to the positions suitable for testing.

Referring to fig. 1 and 3, the test through hole 4 vertically penetrates the rail 2 and the table 1 in the up-down direction, and is a vertical through hole having a rectangular cross section. The testing device is arranged on the worktable 1 and below the worktable 1. Referring to fig. 2 and 4, the testing device includes a tension block 31, a spring 32, and a tension sensor 33. The tension block 31 and the tension sensor 33 are respectively arranged above and below the springs 32, the springs 32 are arranged in parallel in the vertical direction, the upper end of each spring 32 is connected with the tension block 31, and the lower end of each spring 32 is connected with the tension sensor 33. The springs are arranged in three, and the three springs 32 are respectively arranged at three vertexes of the equilateral triangle, and the three springs 32 can provide stable support for the tension block 31 and enable the tension block 31 to be stressed uniformly. The tension block 31 is right below the test through hole 4, and can pass through the test through hole 4 by moving up and down. Each spring 32 is nested within a cylindrical sleeve 34, with the sleeves 34 separating the three springs from each other, preventing the three springs from interfering with each other during extension and retraction.

Referring to fig. 1, 2 and 4, the working table 1 is further provided with a lifting mechanism, the lifting mechanism is arranged below the working table 1, and comprises a lifting table 51, a nut 52, a lead screw 53 and a motor 54, and the tension sensor 33 and the nut 52 are mounted on the lifting table 51. Four guide posts 11 vertically arranged are installed on the working table 1, four guide holes are arranged on the lifting table 51, the guide holes are matched with the guide posts 11, and the lifting table 51 can move up and down relative to the guide posts 11. The lead screw 53 is rotatably mounted on the table 1, the nut 52 is mounted on the elevating table 51, and the lead screw 53 is engaged with the nut 52. The motor 54 is installed on the working table 1, the screw 53 is driven to rotate through the belt transmission mechanism, the screw 53 rotates to drive the nut 52 matched with the screw to move upwards or downwards, and therefore the lifting table 51 is driven to move upwards or downwards along with the screw. The belt transmission mechanism comprises a belt wheel 55, a belt wheel 57 and a belt 56 matched with the two belt wheels, the belt wheel 55 is arranged on a rotating shaft of the motor 54, the belt wheel 57 is arranged on the lead screw 53, the motor 54 is started, the belt wheel 55 and the rotating shaft of the motor rotate together, the belt drives the belt wheel 57 to rotate, and the lead screw 53 and the belt wheel 57 rotate together.

Prior to testing, track 9 is placed on elevator plate 63 as shown in fig. 5. The lifting cylinder 62 moves upwards to lift the magnetic track 9 upwards so that the magnetic track 9 does not contact with the steel rail 2, then the motor 70 is started to move the magnetic track 9 along the length direction of the steel rail 2 until the magnetic track 9 moves to a position suitable for testing, at the moment, the magnetic track 9 is arranged above the testing through hole 4, the lifting cylinder 62 moves downwards so that the magnetic track 9 is placed on the steel rail 2, and the testing can be started. During testing, the magnetic track 9 is electrified, magnetic force is generated after the magnetic track 9 is electrified, the tension block 31 is attracted, the tension block 31 moves upwards, penetrates through the testing through hole 4 and is attracted to the magnetic track 9, meanwhile, the spring 32 is stretched, and the tension sensor 33 detects tension. When the magnetic track 9 is powered off, the magnetic force of the magnetic track 9 disappears, and the restoring elasticity of the spring 32 pulls the tension block 31 down to restore the state before the magnetic track is powered on. The tension sensor 33 can detect the change of the force of the magnetic force after the magnetic track is electrified to attract the tension block 31 and the force of the tension block 31 in the whole process after the magnetic track is electrified, and the force detected by the tension sensor is analyzed to obtain the magnetic track test result. Another test mode is that after the magnetic track is electrified to suck the tension block 31 up, the lifting mechanism makes the tension sensor move downwards to pull the tension block 31 downwards until the tension block 31 is pulled away from the magnetic track 9, and in the process, the tension sensor always detects the tension.

The utility model provides a magnetic track test machine, lift cylinder promote lifter plate rebound, get up placing the magnetic track lifting on the lifter plate, and pushing mechanism makes the movable plate remove, adjusts the position that is fit for the test to the magnetic track, and later lift cylinder promotes the lifter plate rebound, puts the magnetic track on the rail, just can carry out the rail test, can improve magnetic track detection efficiency greatly by automatic quick adjustment magnetic track position. After the magnetic track position adjustment is good, for the magnetic track circular telegram, the automatic pulling force piece of inhaling after the magnetic track circular telegram, the spring automatic recovery after the magnetic track outage, elevating system can remove force sensor in the vertical direction, force sensor automated inspection atress condition, and magnetic track test machine degree of automation is high, detection efficiency is high, the simple operation, simple structure moreover.

Claims (6)

1. A magnetic track testing machine is characterized by comprising a workbench, a steel rail, a testing device, a pushing mechanism and two adjusting mechanisms, wherein the steel rail, the testing device, the pushing mechanism and the adjusting mechanisms are arranged on the workbench, a testing through hole penetrates through the steel rail and the workbench in the vertical direction, the testing device is arranged below the workbench and comprises a tension block, a spring and a tension sensor, the upper end and the lower end of the spring are respectively connected with the tension block and the tension sensor, the tension block is arranged right below the testing through hole and can penetrate through the testing through hole in a vertically moving mode, the two adjusting mechanisms are respectively arranged on two sides of the steel rail, each adjusting mechanism comprises a movable plate and a lifting structure, the movable plate is movably arranged on the workbench and can move back and forth in the length direction of the steel rail, and the lifting structure comprises a lifting cylinder and a lifting plate, the lifting cylinder is installed on the moving plate, a push rod of the lifting cylinder is connected with the lifting plate, the lifting cylinder is used for pushing the lifting plate to move up and down, and the pushing mechanism is used for pushing the moving plates of the two adjusting mechanisms to move synchronously.

2. A magnetic track testing machine as claimed in claim 1, wherein the table is further provided with a lifting mechanism, the tension sensor is arranged on the lifting mechanism, and the lifting mechanism is used for driving the tension sensor to move up and down.

3. A track testing machine as claimed in claim 2, wherein the springs are arranged in three parallel rows, the three springs being arranged at respective three vertices of an equilateral triangle.

4. A magnetic track testing machine as claimed in claim 3, wherein the lifting mechanism comprises a lifting table on which the tension sensor and the nut are mounted, a nut, a lead screw rotatably mounted on the table and cooperating with the nut, and a motor mounted on the table for driving the lead screw to rotate.

5. A magnetic track testing machine as claimed in any one of claims 1 to 4, wherein the pushing mechanism comprises a motor, a front belt transmission mechanism and a rear belt transmission mechanism arranged on the table, the front belt transmission mechanism and the rear belt transmission mechanism are respectively arranged on two sides of the rail, the front belt transmission mechanism comprises a front driving wheel, a front driven wheel and a front belt, the front belt is connected with the movable plate on the same side of the rail, the rear belt transmission mechanism comprises a rear driving wheel, a rear driven wheel and a rear belt, the rear belt is connected with the movable plate on the same side of the rail, the motor drives the front driving wheel to rotate, and the front driven wheel and the rear driving wheel are mounted on the same rotating shaft.

6. The magnetic track testing machine of claim 5, wherein the moving plate is provided with two lifting structures, and the two lifting structures are arranged along the length direction of the steel rail.

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