CN209774627U

CN209774627U - Line drawing tool for measuring shrinkage rate of small-batch insulating paperboards

Info

Publication number: CN209774627U
Application number: CN201920396066.5U
Authority: CN
Inventors: 王佳豪; 洪婧; 洪伟; 王志坤
Original assignee: JIANGXI YAWEI ELECTRIC Co Ltd
Current assignee: JIANGXI YAWEI ELECTRIC Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2019-12-13
Anticipated expiration: 2029-03-27

Abstract

The utility model provides a marking tool is used in measurement of small batch insulated paper board shrinkage factor, belongs to transformer insulated paper board test technical field, including spacing portion and setting-out portion, setting-out portion installs in spacing portion, can slide in spacing portion. Spacing portion includes base, spacing frame, siding track, slide rail, and the base is hollow frame construction, and one of them a pair of lateral part frame of base is spacing frame, and spacing frame is used for spacing to a set of insulating board sample, and the length of spacing frame should hold the sample more than three simultaneously. The top on two limits of spacing frame all sets up the side rail, and the inboard of a pair of side rail sets up the spout respectively, is used for installing the drawing line portion in the spout. The line drawing part comprises a cross rod, a circular blade, a rotating shaft, a connecting rod and a support rod. The cross bar is erected in the slide grooves in the pair of side rails and slides in the slide grooves. The cross rod and the rotating shaft are connected with the supporting rods, the round blades are connected with two ends of the rotating shaft, and the distance between the two round blades is the distance of a line.

Description

Line drawing tool for measuring shrinkage rate of small-batch insulating paperboards

Technical Field

The utility model belongs to the technical field of transformer insulation board test, especially, relate to a setting-out instrument is used in insulating cardboard shrinkage factor survey of small batch.

Background

an important test before the insulating paper board of the transformer is put into use is shrinkage rate measurement, a sample with a certain length and width is cut, two traces are defined according to a certain size in the length direction of the sample, the sample is placed in a drying furnace to be dried completely, the distance between the two traces is measured, and the shrinkage rate of the insulating paper board is calculated according to a standard formula. The test project usually requires three test pieces to be measured continuously to obtain test results, so as to improve the reliability of the test.

At present comparatively common way is carrying out the setting-out to three samples respectively, measures the setting-out distance, is waiting to examine and is measuring the sample after accomplishing, so the operation is comparatively loaded down with trivial details, and is difficult to guarantee that the initial setting-out distance of three samples of same group equals, introduces test error easily.

Disclosure of Invention

The utility model provides a marking tool is used in insulating cardboard shrinkage factor survey of small batch can carry out the setting-out for three samples simultaneously, guarantees that the initial setting-out distance of three samples of same batch equals, reduces the measuring error that the setting-out operation was introduced.

The utility model provides a technical problem adopt following technical scheme to realize:

A line drawing tool for measuring shrinkage of small batches of insulating paperboards comprises a limiting portion and a line drawing portion, wherein the line drawing portion is installed on the limiting portion and can slide on the limiting portion to draw scratches on a sample. Spacing portion includes base, spacing frame, siding track, slide rail and handle, and the base is hollow frame construction, and one of them a pair of lateral part frame of base is spacing frame, and spacing frame is used for spacing to a set of insulated paper board sample, and the length of spacing frame should hold more than three sample simultaneously. The top on two limits of spacing frame all sets up the side rail, and the inboard of a pair of side rail sets up the spout respectively, is used for installing the drawing line portion in the spout. The line drawing part comprises a cross rod, a circular blade, a rotating shaft, a connecting rod and a support rod. The cross bar is erected in the slide grooves in the pair of side rails and slides in the slide grooves. The cross rod and the rotating shaft are connected with the supporting rods, the round blades are connected with two ends of the rotating shaft, and the distance between the two round blades is the distance of a line. The circular blade is rotatable in the pivot, and when the horizontal pole removed, the pivot moved thereupon, and is corresponding, and the circular blade rotates, draws the mar on the insulating board sample, as the measurement mark of test.

furthermore, a handle is arranged on the base, and the direction of the handle is parallel to the side rails. The parallel handles are convenient for operating the line drawing part, the interference between the hand for operating the line drawing part and the handles can be avoided, and the line drawing operation can be conveniently finished at one time.

furthermore, the handle with the height being 15cm ~ 30 cm. higher than the height of the side rail is also convenient for operating the line drawing part.

Further, the spout divide into smooth portion and bellying two parts, and the both ends of spout are the longer part in the middle of the bellying and are smooth portion, and when the setting-out position was located smooth portion, the setting-out portion can carry out the setting-out operation to the sample, and obviously, the width that the length of smooth portion should be enough to hold more than three samples, when the setting-out position was located the bellying at spout both ends, the setting-out portion was upwards carried and is drawn, and at this moment, the setting-out portion left the sample surface, neither can leave the mar on the sample surface, also can not cause the damage to table surface.

Further, the distance between the two circular blades is 150 mm.

Furthermore, in order to facilitate the operation of the picture line part, a connecting rod is arranged between the pair of supporting rods and below the cross rod, and when the picture line part is operated, the connecting rod can be held while the cross rod is held, so that the stable operation of the picture line part is realized.

The utility model has the advantages that:

the utility model discloses an indentation operation in insulating board shrinkage factor test provides one set of specialized tool, and its setting-out operation that can once only accomplish a set of a plurality of samples keeps the mar distance of different samples unanimous, reduces the operation number of times, reduces the measurement number of times, and then reduces the error because of multiple operation introduces, improves the measuring accuracy, improves work efficiency.

Drawings

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

Fig. 2 is a schematic view of a line drawing portion of the present invention;

In the figure: 10. the cutting machine comprises a limiting part, 11 parts of a base, 12 parts of a limiting frame, 13 parts of side rails, 14 parts of sliding grooves, 15 parts of a handle, 20 parts of a line drawing part, 21 parts of a cross bar, 22 parts of a circular blade, 23 parts of a rotating shaft, 24 parts of a connecting rod and 25 parts of a support rod.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

referring to fig. 1 to 2, the scribing tool for measuring the shrinkage rate of the small batch of insulating paper boards comprises a limiting part 10 and a scribing part 20, wherein the scribing part 20 is mounted on the limiting part 10 and can slide on the limiting part 10 to draw a scratch on a sample.

the limiting part 10 comprises a base 11, a limiting frame 12, side rails 13, slide rails 14 and handles 15, wherein the base 11 is of a hollow frame structure, one pair of side frames of the base 11 is the limiting frame 12, the limiting frame 12 is used for limiting a group of insulating paperboard samples, the length of the limiting frame 12 can simultaneously accommodate more than three samples, the side rails 13 are arranged above two edges of the limiting frame 12, sliding grooves 14 are respectively arranged on the inner sides of the pair of side rails 13, a drawing part 20 is arranged in each sliding groove 14, one handle 15 is arranged on the base 11, the direction of each handle 15 is parallel to the corresponding side rail 13, the handle 15, the height of each handle 15 is 15cm ~ 30 cm. higher than that of the corresponding side rail 13, is convenient for operating the drawing part 20, the interference between the hand of the drawing part 20 and the handle 15 can be avoided, and the drawing operation can be conveniently completed at one time, and the handle 15 with the higher height is also convenient for operating the drawing part 20.

The spout 14 is divided into smooth portion and bellying two parts, the both ends of spout 14 are the longer part in the middle of the bellying and are smooth portion, when the setting-out portion 20 was located smooth portion, the setting-out portion 20 can carry out the setting-out operation to the sample, and is obvious, the length of smooth portion should be enough to hold the width of more than three samples, when the setting-out portion 20 was located the bellying at spout 14 both ends, setting-out portion 20 was upwards carried and is drawn, and at this moment, setting-out portion 20 left the sample surface, neither can leave the mar on the sample surface, also can not cause the damage to table surface.

The drawing portion 20 includes a cross bar 21, a circular blade 22, a rotation shaft 23, a link 24, and a stay 25. The cross bar 21 is bridged in the slide groove 14 in the pair of side rails 13 and slides in the slide groove 14. A pair of support rods 25 are connected with the cross rod 21 and the rotating shaft 23, two ends of the rotating shaft 23 are connected with the circular blades 22, and the distance between the two circular blades 22 is the distance drawn by a line and is usually 150 mm. The circular blade 22 is rotatable on a rotating shaft 23, and when the cross bar 21 moves, the rotating shaft 23 moves along with the cross bar, and accordingly, the circular blade 22 rotates to draw a scratch on the insulating paperboard sample as a measuring mark for testing.

Further, in order to facilitate the operation of the picture wire portion 20, a link 24 is provided between the pair of stays 25 below the crossbar 21, and when the operation is performed, the link 24 can be gripped while the crossbar 21 is gripped, thereby achieving a stable operation of the picture wire portion 20.

The above embodiments mainly illustrate the line drawing tool for measuring shrinkage of small insulating paper boards of the present invention. While only limited embodiments and features have been described, it will be understood by those skilled in the art that the invention may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present embodiments are to be considered as illustrative and not restrictive, and various modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A line drawing tool for measuring shrinkage of a small batch of insulating paperboards comprises a limiting part (10) and a line drawing part (20), wherein the line drawing part (20) is installed on the limiting part (10) and can slide on the limiting part (10), the line drawing tool is characterized in that the limiting part (10) comprises a base (11), a limiting frame (12), side rails (13) and sliding grooves (14), the base (11) is of a hollow frame structure, one pair of side frames of the base (11) are the limiting frame (12), the length of the limiting frame (12) can accommodate more than three samples simultaneously, the side rails (13) are arranged above two edges of the limiting frame (12), the sliding grooves (14) are respectively arranged on the inner sides of the side rails (13), the line drawing part (20) comprises a cross rod (21), a circular blade (22), a rotating shaft (23) and a supporting rod (25), the cross rod (21) is erected in the sliding grooves (14) in the side rails (13), the pair of supporting rods (25) are connected with the cross rod (21) and the rotating shaft (23) in a sliding mode in the sliding groove (14), the two ends of the rotating shaft (23) are connected with the circular blades (22), and the distance between the two circular blades (22) is the distance of a drawing line.

2. The line drawing tool for shrinkage determination of small batch of insulating paper boards according to claim 1, wherein a handle (15) is provided on the base (11), and the handle (15) is oriented in parallel with the side rails (13).

3. the tool for drawing lines in shrinkage measurement of small batch of insulating paper board according ~ claim 2, wherein the height of the handle (15) is 15cm ~ 30cm higher than the height of the side rail (13).

4. The string-drawing tool for shrinkage rate measurement of small batch of insulating paper boards according to claim 1, wherein the slide groove (14) is divided into two parts, namely a smooth part and a convex part, the two ends of the slide groove (14) are the longer parts in the middle of the convex part and are the smooth parts, and the length of the smooth parts is enough to accommodate the width of more than three test samples.

5. The set of line drawing tools for shrinkage determination of insulating paper board as claimed in claim 1, wherein the distance between the two circular blades (22) is 150 mm.

6. The line drawing tool for shrinkage measurement of small batch of insulating paper board as claimed in claim 1, wherein a link (24) is provided between the pair of support rods (25) under the cross bar (21).