A railway relay tie rod splitting tool

Abstract

The invention discloses a railway relay rod splitting tool, comprising a handle and a cutter head, wherein the handle is cylindrical, the cross section of the cutter head is an isosceles triangle, the vertex angle of the isosceles triangle is 30 degrees, the handle and the cutter head are connected through a cutter neck, and a circular arc is arranged at the connection between the cutter neck, the handle and the cutter head; arms are arranged on both sides of the lower part of the cutter head, the two arms are U-shaped, limited edges are arranged on the inner sides of the two arms, and guide flanges are arranged outwardly at the upper ends of the two arms, and the angle between the guide flange and the arm is 60 degrees. The arrangement of the guide flange and the guide surface of the structure of the invention can facilitate the accurate correspondence between the position of the cutter head and the notch; the shape of the cutter head and the arrangement of the limit edge can ensure that the angle of the split after expansion is between 30º and 60º, which can not only fix the pull rod, but also will not cause damage to it, thereby effectively solving the problem that the angle of the split of the JYJXC160 / 260 relay in the prior art cannot be controlled during the production process.

Description

Technical Field

[0001] The invention relates to a railway relay tie rod splitting tool, in particular to a special splitting tool for the JYJXC-160 / 260 relay tie rod. During the adjustment process of the JYJXC-160 / 260 relay, the tie rod is split to meet the technical requirements. Background Art

[0002] The existing elastic railway signal relay contact system generally adopts the structure of pull rod + limit frame or pull rod + baffle. The railway signal safety type JYJXC160 / 260 relay adopts the above structure. In the production and processing of JYJXC160 / 260 relay, in order to fix the pull rod in a safe position and prevent it from jumping out from left to right, it is necessary to expand the split at one end to 30º-60º. The use of ordinary adjustment tools cannot accurately meet this requirement. First, the split adjustment is too large to damage the pull rod, and second, the split adjustment is too small to fix the pull rod. It brings inconvenience to processing and affects production efficiency and processing accuracy.

[0003] Therefore, a tie rod splitting tool is needed to well control the splitting angle, thereby fixing the tie rod in a safe position without jumping left and right and falling out, thereby improving production efficiency. Summary of the invention

[0004] The purpose of the invention is to provide a railway relay tie rod splitting tool to solve the problem in the prior art that the splitting angle of the JYJXC160 / 260 relay cannot be controlled during the production process.

[0005] The object of the present invention is achieved as follows: a railway relay pull rod splitting tool, characterized in that it includes a tool handle and a tool head, the tool handle is cylindrical, the cross-section of the tool head is an isosceles triangle, the vertex angle of the isosceles triangle is 30 degrees, the tool handle and the tool head are connected through a tool neck, and a circular arc is provided at the connection between the tool neck, the tool handle and the tool head; support arms are provided on both sides of the lower part of the tool head, the two support arms are U-shaped, limited position edges are provided on the inner sides of the two support arms, and guide flanges are provided outwardly at the upper ends of the two support arms, and the angle between the guide flange and the support arms is 60 degrees.

[0006] Furthermore: a guide surface is arranged on the outer side of the guide flange, and the guide surface matches with the inner side of the housing of the relay.

[0007] Furthermore: the cross-section of the cutter head is an isosceles triangle with a base of 7 mm and a vertical height of 29.5 mm.

[0008] The advantages of the present invention are: the present invention has a simple structure, low cost, convenient use and good effect. The setting of the guide flange and the guide surface of the structure of the present invention can facilitate the accurate correspondence between the position of the cutter head and the notch; the shape of the cutter head and the setting of the limiting edge can ensure that the angle of the split after expansion is between 30º and 60º, which can fix the pull rod without damaging it, thereby effectively solving the problem of the uncontrollable angle of the split of the JYJXC160 / 260 relay in the production process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a front view of the structure of the present invention;

[0011] Figure 2 It is a three-dimensional structural schematic diagram of a partial structure of the present invention.

[0012] The serial numbers in the figure are as follows: 1 is the handle, 2 is the cutter head, 3 is the cutter neck, 31 is the arc, 4 is the support arm, 5 is the limiting edge, 6 is the guide flange, and 7 is the guide surface. DETAILED DESCRIPTION

[0013] like Figure 1 and Figure 2 The present invention shows a railway relay tie rod splitting tool, which is used to split the tie rod end and control the splitting angle in the production process of JYJXC160 / 260 relays. It includes a handle 1 and a cutter head 2. The handle is cylindrical and has knurling on the outside for easy holding or clamping. The cutter head is a plate with an isosceles triangle cross section. The vertex angle of the isosceles triangle is 30 degrees, the bottom side is 7mm, and the vertical height is 29.5mm. The triangular plate setting makes the cutter head a straight line, with large bearing capacity and long working life. The knife handle and the knife head are transitionally connected through the knife neck 3, and a transition arc 31 is provided at the connection between the knife neck, the knife handle and the knife head; support arms 4 are provided on both sides of the lower part of the knife head, and the two support arms cooperate to form a U shape to protect the knife head in the middle, which can prevent the knife head from being accidentally damaged or hurting people by collision; a limited position edge 5 is provided on the inner side of the two support arms, and a guide flange 6 is provided at the upper end of the two support arms to the outside and downward, and the angle between the guide flange and the support arm, that is, the angle between the inner side of the support arm and the upper side of the guide flange is 60 degrees.

[0014] Preferably, a guide surface 7 is provided on the outer side of the guide flange, the guide surface is a vertical surface, or has a very small angle with the vertical surface (no more than 5 degrees), the upper side is inclined inwards, and the guide surface matches the inner side of the relay housing.

[0015] The working process of the structure of the present invention is as follows: hold the knife handle by hand, align the knife head with the end of the pull rod, and insert it inwardly. During the insertion process, the upper inclined surface of the guide flange matches the opening on the shell (or the installation auxiliary tool with a similar shape to the shell) with an opening on one side, playing a guiding role, so that the tool is easy to insert. After the guide flange positions the structure, the guide surface matches the inner wall of the shell to continue to maintain the relative position of the knife head, making it more convenient to align with the notch. The angle between the guide surface and the vertical surface allows the knife head to adjust the angle and position at a small angle, and can also be finely adjusted by the elastic deformation of the guide surface or the support arm. After the knife head is inserted into the notch, the pull rod is split to both sides. During the process of the pull rod being separated to both sides, the outer sides of the two half pieces of the pull rod contact the limiting edge, and make it in the gap formed by the limiting edge and the knife head, avoiding the two half pieces of the pull rod from curling outward under the action of stress or impact force, thereby preventing the split from being too large. The gap formed by the limiting edge and the cutter head is larger at the top and smaller at the bottom, and the outward tendency of the two half-piece tie rods formed by the splitting is greater as the splitting depth increases. However, the increase in the splitting depth increases the depth of the tie rod entering the above gap accordingly. The gap is larger at the top and smaller at the bottom, and the limiting edge is a vertical edge, so that the tie rod is closer to the cutter head, preventing the angle from expanding. In other words, no matter how deep the splitting is, the limiting edge can provide the corresponding limiting force to ensure that the angle of the splitting meets the requirements.

Claims

1. A railway relay tie rod splitting tool, characterized in that: The utility model comprises a knife handle and a knife head, wherein the knife handle is cylindrical, the cross section of the knife head is an isosceles triangle, the vertex angle of the isosceles triangle is 30 degrees, the knife handle and the knife head are connected through a knife neck, and arcs are respectively arranged at the connection between the knife neck and the knife handle and at the connection between the knife neck and the knife head; supporting arms are arranged on both sides of the lower part of the knife head, the two supporting arms are U-shaped, limited position edges are arranged on the inner sides of the two supporting arms, and guiding flanges are arranged outwardly at the upper ends of the two supporting arms, and the angle between the guiding flanges and the supporting arms is 60 degrees.

2. The railway relay tie rod splitting tool according to claim 1, characterized in that: A guide surface is arranged on the outer side of the guide flange, and the guide surface matches with the inner side of the housing of the relay.

3. The railway relay tie rod splitting tool according to claim 1, characterized in that: The cross section of the cutter head is an isosceles triangle, the base of the isosceles triangle is 7 mm, and the vertical height of the isosceles triangle is 29.5 mm.

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