CN214426617U

CN214426617U - Tool for measuring straightness of rail of gantry crane

Info

Publication number: CN214426617U
Application number: CN202120518341.3U
Authority: CN
Inventors: 赵勇; 钱正林; 唐刚; 张晓勇; 范庆
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-19
Anticipated expiration: 2031-03-11

Abstract

A tool for measuring the straightness of a track of a gantry crane comprises a ruler (1), wherein scale indications are arranged on the ruler (1) and comprise '0' scales, and positive numerical value scales and negative numerical value scales are respectively arranged at the lower end and the upper end of each '0' scale; the ruler (1) is slidably arranged on the fixed groove plate (2), the fixed groove plate (2) is provided with a scale observation port (21), and the scale observation port (21) is used for observing scale indication; the fixed groove plate (2) is provided with a sliding groove (22), and a locking device is arranged at the sliding groove (22) and used for locking the ruler (1). The utility model discloses a "zero-bit is placed in the middle, and the special scale mark of positive under the burden can read the straightness accuracy deviation value of measurement station directly perceived, and this instrument easy operation need not many people and cooperates, and 1 person can operation simple structure.

Description

Tool for measuring straightness of rail of gantry crane

Technical Field

The utility model belongs to straightness accuracy measuring tool field, in particular to be used for door of a bridge machine track straightness accuracy measuring instrument.

Background

In the use process of the bridge door machine, the bridge door machine is influenced by comprehensive factors, the track is often subjected to certain dislocation and deformation, so that the straightness of the track is difficult to ensure, great hidden danger is caused to the safe and stable operation of the bridge door machine, and in order to eliminate the hidden danger, the straightness of the track of the bridge door machine needs to be adjusted again. In the process of adjusting the track, how to quickly and intuitively measure the straightness of the track has great significance for adjusting the track. Currently, the following disadvantages mainly exist with respect to this technology:

1. there is no direct-viewing and quick special measuring instrument, the absolute position of each measuring point is measured by the traditional method, and then the difference is calculated one by one to obtain the straightness deviation value, and the later-period calculation work load is large.

2. The total station is adopted to measure the absolute coordinates of each measuring point, the equipment is expensive and heavy, a plurality of persons are required to cooperate in the measuring process, and the later-period calculated amount is large.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides an instrument for door bridge machine track straightness accuracy is measured adopts "zero-bit placed in the middle, and the special scale mark of positive under the burden can directly perceivedly read the straightness accuracy deviation value of measurement station, and this instrument easy operation need not many people and cooperates, and 1 person can operate simple structure.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

a tool for measuring the straightness of a track of a gantry crane comprises a straight ruler, wherein scale indications are arranged on the straight ruler and comprise '0' scales, and positive numerical value scales and negative numerical value scales are respectively arranged at the lower end and the upper end of each '0' scale; the ruler is slidably arranged on the fixed groove plate, and the fixed groove plate is provided with a scale observation port for observing scale indication; the fixed groove plate is provided with a sliding groove, and the sliding groove is provided with a locking device which is used for locking the ruler.

In the preferred scheme, the locking device comprises a threaded column fixed on the ruler, the threaded column is in threaded fit with the internal thread knob, and the threaded column penetrates through the sliding groove.

In a preferred embodiment, the ruler is used for reading a value corresponding to the reference string.

In the preferred scheme, two ends of the reference rope are respectively tied on a fixed seat, and the fixed seats are used for being fixed at two ends of the rail of the gantry crane.

In the preferred scheme, the fixing base include the base, the base top is equipped with the fixed head, the base bottom is equipped with the permanent magnet, the fixed head is equipped with the through wires hole.

This patent can reach following beneficial effect:

1. simple structure, convenient carrying and low manufacturing cost.

2. The straightness deviation value of the measuring point can be read visually by adopting special scale marks of 'zero position centered, upper negative and lower positive'.

3. The straightness of the track can be measured in the adjusting process, the measured value can visually reflect the height deviation condition of the measuring point relative to the reference point, the track adjusting direction can be guided in real time, and the track adjusting progress is accelerated.

4. The operation is simple, and people can operate the device without cooperation of multiple people.

5. The method has wide popularization and application range, and can be popularized and applied to the adjustment of the rail track or the measurement of the straightness of other long and straight objects.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a first three-dimensional structure diagram of the present invention;

FIG. 2 is a second three-dimensional structural diagram of the present invention;

FIG. 3 is a first schematic diagram of the measurement of the present invention;

FIG. 4 is a second schematic diagram of the measurement of the present invention;

fig. 5 is a front view of the present invention.

In the figure: ruler 1, fixed frid 2, scale viewing aperture 21, spout 22, screw thread post 31, internal thread knob 32, reference rope 4, fixing base 5, door machine track 6.

Detailed Description

The preferable scheme is as shown in fig. 1 to 5, the tool for measuring the straightness of the track of the gantry crane comprises a straight scale 1, wherein scale indications are arranged on the straight scale 1 and comprise '0' scales, and positive numerical value scales and negative numerical value scales are respectively arranged at the lower end and the upper end of the '0' scale; the ruler 1 is slidably arranged on the fixed groove plate 2, the fixed groove plate 2 is provided with a scale observation port 21, and the scale observation port 21 is used for observing scale indication; the fixed groove plate 2 is provided with a sliding groove 22, and a locking device is arranged at the sliding groove 22 and used for locking the ruler 1.

Fixed frid 2 is top open-ended groove box structure, has openly seted up scale viewing aperture 21 at fixed frid 2, and ruler 1 is pegged graft in fixed frid 2, and the scale indication is located scale viewing aperture 21. The position of the straightedge 1 is drawn up and down and the position of the straightedge 1 is fixed by a locking device.

Further, the locking means comprises a threaded post 31 fixed to the straightedge 1, the threaded post 31 being in threaded engagement with an internally threaded knob 32, the threaded post 31 being disposed through the chute 22. Screwing the internally threaded knob 32 serves to fasten the straightedge 1.

Further, as shown in fig. 3, the straightedge 1 is used for reading the corresponding value of the reference string 4.

Furthermore, two ends of the reference rope 4 are respectively tied to a fixing seat 5, and the fixing seats 5 are used for being fixed at two ends of the door bridge machine track 6.

Further, fixing base 5 includes the base, and the base top is equipped with the fixed head, and the base bottom is equipped with the permanent magnet, and the fixed head is equipped with the through wires hole. The reference rope 4 can be a piano wire, and the fixed seat 5 is adsorbed at two ends of the gantry crane track 6, so that the reference rope 4 is arranged in a linear state.

The working principle is as follows:

as shown in fig. 3, the alignment measurement tool needs to be zeroed before measurement. The reference rope 4 and the fixed seat 5 are arranged firstly, so that the reference rope 4 is in a straightening state. And then the bottom of the fixed groove plate 2 of the tool is placed on the gantry crane track 6, the scale indication is aligned with the direction of the piano line and is close to the side of the piano line, the internal thread knob 32 at the back of the measuring tool is loosened, the upper part of the ruler 1 is held by hand, the ruler is slid along the up-down direction until the scale line 0 is parallel and level with the piano line, the internal thread knob 32 is locked, and the zero setting work of the scale is completed.

As shown in fig. 4, the measurement tool after zero setting can be used for measuring the straightness of the bridge door machine track 6, specifically, the bottom of the measurement tool fixing groove plate 2 is placed at any position needing to be measured, the scaled side of the straight ruler is aligned with the direction of the piano line and is close to the side of the piano line, and the reading of the steel tapping piano line corresponding to the graduated ruler through head-up observation is the straightness deviation value of the measuring point relative to the reference point, for example: the scale value is "-5", indicating that the point is 5mm lower than the datum point. The internal thread knob 32 is required to be always kept in a fastening state in the measuring process, and zero setting is only required to be carried out once in the measuring process of the straightness of the same section of track.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a be used for instrument of door bridge machine track straightness accuracy measurement, includes ruler (1), is equipped with scale indication on ruler (1), its characterized in that: the scale indication comprises a scale of '0', and a positive numerical value scale and a negative numerical value scale are respectively arranged at the lower end and the upper end of the scale of '0'; the ruler (1) is slidably arranged on the fixed groove plate (2), the fixed groove plate (2) is provided with a scale observation port (21), and the scale observation port (21) is used for observing scale indication; the fixed groove plate (2) is provided with a sliding groove (22), and a locking device is arranged at the sliding groove (22) and used for locking the ruler (1).

2. The tool for bridge portal crane track straightness measurement according to claim 1, wherein: the locking device comprises a threaded column (31) fixed on the ruler (1), the threaded column (31) is in threaded fit with an internal thread knob (32), and the threaded column (31) penetrates through the sliding groove (22).

3. A tool for portal track straightness measurement according to claim 1 or 2, wherein: the ruler (1) is used for reading the numerical value corresponding to the reference rope (4).

4. The tool for bridge crane rail straightness measurement of claim 3, wherein: two ends of the reference rope (4) are respectively tied on a fixed seat (5), and the fixed seats (5) are used for being fixed at two ends of a bridge door machine track (6).

5. The tool for bridge portal crane rail straightness measurement according to claim 4, wherein: the fixing seat (5) comprises a base, a fixing head is arranged at the top of the base, a permanent magnet is arranged at the bottom of the base, and a threading hole is formed in the fixing head.