JP3011202U - Rail adhesion measuring device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rail adhesion measuring device that is easy to carry around, easy to maintain, and easy to measure. [Structure] Basic rail 1 and end rail 2 when closely attached
The contact load detecting member 6 is provided which can be inserted into the space 3 formed at the intermediate height position. The close contact load detection member 6 is provided with a protrusion 7 on the side of the tip end portion which is a fulcrum to contact the end rail 2 and a bolt 8 on the side surface of the base end portion which is screwed so that the tip end can abut on the basic rail 1. ing. In addition, strain gauges A, A ′,
B and B'are provided, and an indicator meter for indicating the output of the strain gauge due to the strain applied to the contact load detection member 6 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for measuring the adhesion force between a basic rail and a shank end rail, which are in close contact with each other by a railway signal rolling machine or the like.

[0002]

[Prior art]

 When the track diverges, the rolling end machine moves the branch rail to diverge, but when it moves and changes to the basic rail on the other side, it adheres with the specified adhesion force and moves due to train vibration etc. It is necessary to do so, and the law stipulates that the contact force must be maintained such that a force of 100 kg or more is required to separate the end rail from the basic rail by 1 mm.

[0003]

[Problems to be solved by the device]

 By the way, the rail adhesion force measuring device that has been conventionally used to measure the adhesion force of the tip end rail is such that a device called a pusher that expands with hydraulic pressure is inserted between the tip end rail and the basic rail. The rail contact force is measured by measuring the hydraulic pressure at that time by inflating and expanding the end rail 1 mm from the basic rail. However, in the case of this conventional device, there are problems such as oil leakage due to hydraulic pressure because of the use of hydraulic equipment, or inconvenience in supplying oil and carrying around.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and to provide a rail adhesion measuring device which is easy to carry around, easy to maintain, and easy to measure.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is to measure the adhesion force by which the end rail is moved to the basic rail side and closely adheres to its head. It is equipped with a contact load detection member that allows the tip to be inserted into the space formed at the middle height position of the rail. The contact load detection member has a protrusion on the side of the tip that serves as a fulcrum for contacting the end rail, and a bolt on the side of the base that is screwed so that the tip can contact the basic rail. Strain gauges are provided on both sides of the base end side of the section, and an indicator meter for instructing the output of the strain gauge due to the strain applied to the contact load detection member is provided.

[0006]

[Action]

 Insert the tip of the contact load detection member into the space between the basic rail and the end rail, turn the bolt, and touch the tip to the basic rail to separate the proximal side of the contact load detection member from the basic rail. If the bolt is turned even after the protrusion contacts the rail end rail, the close contact load detection member separates from the basic rail with the protrusion as a fulcrum and separates from the head of the basic rail to which the pin end rail adheres. Open the gap. At this time, the front side of the contact load detection member contracts and the back side expands, so strain strain is applied to the strain gauge, and the strain gauge output due to this strain is instructed to the indicator meter to measure the rail adhesion force. .

[0007]

【Example】

 1 is a plan view of an essential part showing an embodiment of the present invention, and FIG. 2 is an enlarged vertical side view taken along the line II-II of FIG. Reference numeral 1 is a basic rail, 2 is a tip end rail, and the tip end rail 2 is moved from the right side to the left side in FIG. 1 and 2 show this close contact (locking) state. In FIG. 2, reference numeral 3 denotes a space, which is formed at an intermediate height position between the basic rail 1 and the end rail 2 when they are in close contact with each other. Reference numeral 4 denotes a movable plate which is integrated with the lower end of the end rail 2, and 5 denotes a sleeper of the basic rail 1.

In FIG. 3, reference numeral 6 denotes a rod-shaped contact load detecting member, and a projection 7 which comes into contact with the end rail 2 and serves as a fulcrum on the side surface of the tip can contact the tip of the base rail 1 with the side surface of the base end. Each of the bolts 8 screwed into the is provided. Notches 9 are formed on both side surfaces slightly closer to the base end than the protrusion 7, and strain gauges A and A'are attached to the front surface of the notch portions and strain gauges B and B'are attached to the rear surface thereof. . Reference numeral 11 denotes a cover which covers the notch 9 having the strain gauges A, A ', B, B'and is attached to the outer periphery of the contact load detecting member 6. The strain gauges A, A ', B, B'are connected to a bridge circuit as shown in FIG. 4, and the wiring is connected to the connector 13 provided at the proximal end of the contact load detection member 6 shown in FIG. 3 and the connector. The output e of the strain gauges A, A ', B, B'extracted to the outside through the external connection connector 14 due to the strain assembled in the bridge is amplified by the amplifier 15 and transmitted to the indicator meter 16 at that time. The deflection of the meter 16 is indicated as a rail adhesion force. 17 is a bridge power supply.

Next, the operation of the above embodiment will be described. To measure the pressure of the end rail 2 in close contact with the basic rail 1, first insert the tip of the contact load detection member 6 into the space 3 between the rails 1 and 2, and turn the bolt 8 as shown in FIG. The front end of the contact load detecting member 6 is separated from the basic rail 1 by applying its tip to the basic rail 1. Then, when the bolt 8 is turned even after the protrusion 7 contacts the end rail 2, the contact load detection member 6 separates from the basic rail 1 with the protrusion 7 as a fulcrum and the end rail 2 adheres. Open 1 mm apart from the head 1a of the basic rail 1. This 1 mm open detection can be easily performed by inserting a thickness gauge (not shown).

At this time, since the front surface side of the contact load detection member 6 contracts and the rear surface side extends, strain stress is applied to the strain gauges A, A ′, B, and B ′, and the strain gauge output e due to this strain is amplified. It is amplified at 9 and is instructed to the indicator meter 10 by, for example, 150 kg, and this is measured as the rail adhesion force. The adhesion of the rail is set to 100 kg, for example, as described above, and this is created as a meter instruction table, so it is extremely easy to compare the measured value with the set value. In the case of this embodiment, it is assumed that there is no problem with the adhesion of the rail if it is within the range of 100 kg to 150 kg, and if it is less than 100 kg, the adhesion of the rail becomes weak and it is in a dangerous state. View.

In this embodiment, the strain stress naturally varies depending on the mounting positions of the strain gauges A, A ', B, B'. It is necessary to apply a load and set the meter indication for the indicator meter 10 accurately. Further, although the strain gauges A, A ', B, B'are attached to the notches 9 in this embodiment, it is not always necessary to have such a structure, and both side surfaces of the contact load detecting member 6 without the notches 9 May be attached directly to. Moreover, the number of attachments on both sides is arbitrary.

[0012]

[Effect of device]

 Since the present invention has the above-mentioned configuration, it has an excellent effect that it is easy to carry around, easy to maintain, and easy to measure as compared with the conventional one using hydraulic pressure.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part showing an embodiment of the present invention.

FIG. 2 is an enlarged vertical side view taken along the line II-II in FIG.

FIG. 3 is an enlarged plan view of an essential part in a state where the tip end portion of the contact load detection member is inserted into the spaces of the basic rail and the end rail.

FIG. 4 is a circuit diagram showing a strain gauge bridge circuit and the like.

[Explanation of symbols]

 1 Basic Rail 2 End Rail 3 Space 6 Contact Load Detecting Member 7 Projection 8 Bolt 9 Notch 16 Indicator Meter A, A ', B, B'Strain Gauge

Claims (1)

[Scope of utility model registration request] 1. The end rail is moved to the side of the basic rail and adheres closely to the head of the base rail. The adhesion force is measured, and the contact rail is formed at an intermediate height position between the base rail and the end rail. It is equipped with a contact load detection member that can insert the tip into the space, and this contact load detection member has a projection on the side of the tip that serves as a fulcrum that abuts on the end rail, and a tip on the base of the base rail on the side of the base. And the strain gauges are provided on both sides of the base end side of the projection, and the instruction to instruct the output of the strain gauge due to the strain applied to the contact load detection member. Rail adhesion measuring device characterized by having a meter.