CN218002359U

CN218002359U - Track span measuring device

Info

Publication number: CN218002359U
Application number: CN202222399666.1U
Authority: CN
Inventors: 李占闯; 任立丹; 王代发
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-09
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to a measuring tool, in particular to a track span measuring device, which comprises a steel disc ruler, a first handle and a second handle, wherein the end of the first handle is provided with a top plate, and the upper surface of the first handle is symmetrically provided with open trunnions; the lower surface of the handle I is provided with a trunnion corresponding to the position of the handle II, and the handle I and the handle II are hinged in a matched manner through the trunnion and the eccentric shaft; one end of the steel disc ruler is arranged between the eccentric shaft and the first handle, and the other end of the steel disc ruler is provided with a spring scale. The utility model discloses can gather materials on the spot, simple structure makes easily, and it is accurate to measure the structure, and the efficiency of construction is high.

Description

Track span measuring device

Technical Field

The utility model relates to a measuring tool, especially a track span measuring device.

Background

As is well known, a bridge crane in a steel mill is an indispensable component of modern production as a space transportation device, and in the transportation operation process of the bridge crane, the crane always runs on a track, and the track gauge deviation value of the running track of the crane exceeds the normal range, which is one of important reasons directly influencing the running of a cart to gnaw the track, so that the installation accuracy of the track span has an important influence on the structural performance of the crane. Tolerance of the bridge crane gauge: when the track span is less than or equal to 10m, the allowable deviation DeltaS = +/-3 mm, and when the track span is more than 10m, the allowable deviation DeltaS = +/-3 +0.25 (S-10) and the maximum value is +/-15 mm. At present, the span measurement mode of the track is a mode of combining a checked steel disc ruler and a spring scale (namely, one end of the ruler is fixed by a clamping plate, and the other end of the ruler is tied with a spring scale). Due to different manipulations of operators and the influence of external condition factors, the phenomena of non-uniform measurement data, insufficient numerical accuracy, repeated measurement and the like of different operators often occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a track span measuring device, it aims at solving different operating personnel measured data and is not unified, and the numerical accuracy is not enough, measuring result inaccuracy scheduling problem.

The utility model adopts the following technical scheme:

a rail span measuring device comprises a steel disc ruler, a first handle and a second handle, wherein a top plate is arranged at the end of the first handle, and trunnions with openings are symmetrically arranged on the upper surface of the first handle; the lower surface of the handle I is provided with a trunnion corresponding to the position of the handle II, and the handle I and the handle II are hinged in a matched manner through the trunnion and the eccentric shaft; one end of the steel disc ruler is arranged between the eccentric shaft and the first handle, and the other end of the steel disc ruler is provided with a spring scale.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure, the operation of being convenient for, this device compresses tightly the steel disc chi on handle one through the eccentric shaft, then utilizes handle one and two centre grippings of handle to make the steel disc chi fixed firm, guarantees the holistic measurement accuracy of device.

Further, the utility model discloses a have the option scheme to be:

the distance between the two trunnions is larger than the width of the steel disc ruler.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a first handle;

FIG. 3 is a schematic structural view of a second handle;

in the figure: a track 1; a first handle 2; a second handle 3; a top plate 4; a trunnion 5; an eccentric shaft 6; a steel disc ruler 7; a spring scale 8; an open structure 9.

Detailed Description

The invention is further described with reference to the following drawings and specific embodiments.

A track span measuring device mainly comprises a steel disc ruler 7, a first handle 2, a second handle 3 and the like, wherein the first handle 2 and the second handle 3 are respectively made of steel plates with the width of 20mm and the thickness of 10 mm.

The front end of the first handle 2 is provided with a top plate 4 perpendicular to the front end, the front and back sides of the upper surface of the front end of the first handle 2 are symmetrically provided with trunnions 5, the distance between the two trunnions 5 is larger than the width of the steel disc ruler 7, and the right sides of the trunnions 5 are arranged to be open structures 8. In this embodiment, the top plate 4 may be formed by bending the front end of a steel plate downward by 90 °, or may be welded to the front end of the first handle 2 directly by using a strip steel plate.

An eccentric shaft 6 is arranged on the lower surface of the front end of the second handle 3 corresponding to the positions of the two trunnions 5, the eccentric shaft 6 is mounted with the trunnions 5 through an opening structure 9 on the right side of the trunnions 5, and the first handle 2 and the second handle 3 are hinged through the eccentric shaft 6 and the trunnions 5, so that the second handle 3 and the first handle 2 can rotate relatively.

When the device is applied, a mark is arranged in the middle of the device every 5 meters along the length direction of a track, then a first handle 2 and a second handle 3 of the device are separated, a steel disc ruler 7 penetrates through the first handle 2, the front end of the first handle 2 is aligned to a fixed scale at one end of the steel disc ruler 7, then the second handle 3 is installed from an opening structure 9 at the right side of a trunnion 5, the steel disc ruler 7 is tightly pressed by using the outer edge surface of the center of an eccentric shaft 6, the device is held by a hand to be aligned to the mark and is abutted to the end surface of one side of the track 1 by using a top plate 4 at the front end of the first handle 2, a spring scale 8 is installed at the other end of the steel disc ruler 7, a certain pulling force is applied to the spring scale 8 to tighten the steel disc ruler 7, the measured value of the steel disc ruler 7 is read, when one position is measured, the same pulling force needs to be applied to the spring scale for verification for multiple times, and then the next position is measured by using the method.

The utility model discloses can gather materials locally, the easy preparation of simple structure compresses tightly steel disc chi 7 through handle 2 and handle two 3 moreover, utilizes spring scale 8 to carry out the span measurement with the same pulling force to track 1, has ensured measuring result's accuracy nature, has also ensured the efficiency of construction simultaneously for the construction progress.

The above is only the concrete embodiments of the present invention, but the protection of the present invention is not limited to this, and all the equivalent changes or replacements proposed to the technical features of the present technical solution, which can be considered by those skilled in the art, are included in the protection scope of the present invention.

Claims

1. The utility model provides a track span measuring device, includes steel disc chi, its characterized in that: the top plate is arranged at the end of the first handle, and trunnions with openings are symmetrically arranged on the upper surface of the first handle; an eccentric shaft matched with the lower surface of the handle II is arranged at a position corresponding to the trunnion, and the handle I and the handle II are mutually matched and hinged through the trunnion and the eccentric shaft; one end of the steel disc ruler is arranged between the eccentric shaft and the first handle, and the other end of the steel disc ruler is provided with a spring scale.

2. The track span measuring device of claim 1, wherein: the interval between two gudgeons is greater than the width of steel disc chi.