CN2138786Y

CN2138786Y - Vertical measuring ruler for crane wheel

Info

Publication number: CN2138786Y
Application number: CN 92233625
Authority: CN
Inventors: 张树军
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-22
Filing date: 1992-09-22
Publication date: 1993-07-21
Anticipated expiration: 2002-09-22

Abstract

The utility model relates to a vertical measuring ruler for crane wheel, which is suitable for the detection of bridge type and gantry cranes. The utility model comprises a suspension rope, a weight dropper, and an H-shaped guiding rule which is composed of an upper crossfoot, a lower graduation crossfoot, and an intermediate vertical ruler, wherein, the upper crossfoot and the lower graduation crossfoot are mutually paralleled, and the intermediate vertical ruler is connected between the upper crossfoot and the lower graduation crossfoot; the upper end of the h-shaped guiding rule is provided with a through hole, and the lower end is provided with scale lines; the central line of the through hole and the zero scale line of the scale lines are in the central plane of the H-shaped guiding rule; thereby, the utility model not only can improve measurement accuracy, but also has the advantages of convenient operation, simple structure, and low cost.

Description

Vertical measuring ruler for crane wheel

The utility model relates to a kind of crane wheel special detection tool, is applicable to the detection of bridge-type and gantry wheel.

As everyone knows: the wheel of cranes such as bridge-type, planer-type is to move on guide rail, because the flexural deformation that large-span steel arched girder dead weight, welding processing, construction and installation and use produce, make wheel and guide rail out of plumb (wheel shaft is crooked), thereby occurring abnormal " gnawing rail " between wheel and the guide rail contacts, cause that the resistance of motion is huge to be increased, the wearing and tearing of wheel and guide rail, reduction of service life, even peril appears.

At present, detection ruler commonly used is to make positioning reference plane and the crossfoot that band hangs weight is set with wheel two wheel rims, and then measures the horizontal range (seeing shown in Figure 1) of the lifting rope (certain-length) that ties up on the weight and wheel reference side (positioning reference plane of wheel processing and installation) respective point with common rule.Because above-mentioned crossfoot is not processing and the installing and locating reference field that places wheel, measure deflection with hand-held common rule again, therefore, measuring error is bigger, and operation is also inconvenient.

In view of this, the purpose of this utility model provides a kind of crane wheel vertical detection chi of special use, not only can improve measuring accuracy, and operation is also convenient, and in addition, cost is also cheap.

The purpose of this utility model is achieved in that it comprises lifting rope, weight, also be provided with the I-shaped guiding ruler that constitutes by last crossfoot, following scale crossfoot and middle perpendicular chi, wherein going up crossfoot and following scale crossfoot is parallel to each other, middle perpendicular chi vertically is connected between crossfoot and the following scale crossfoot, there is a through hole above-mentioned I-shaped guiding ruler upper end, there is scale mark the lower end, and the zero groove in the center line of this through hole and the scale mark is in the central plane of I-shaped guiding ruler.

The utility model because be with the processing of wheel and installing and locating benchmark as measuring basis, thereby measuring error is little, and has scale on this detection ruler, therefore operation is also convenient, in addition, makes simple, cheap.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 prior art embodiments synoptic diagram.

Fig. 2 the utility model examples measure view.

Fig. 3 the utility model example structure synoptic diagram.

Among Fig. 1: 1. crossfoot 2. lifting ropes 3. weights 4. wheels 5. vehicle frames.

Among Fig. 2 and Fig. 3: 1. I-shaped guiding ruler 1a. goes up and erects chi 1d. through hole 2. lifting rope 2a. threading axles 3. weights 4. wheel 4a. wheel reference side 4b. wheel rim 4c. wheel shaft 5. vehicle frames under the crossfoot 1b. in the middle of the scale crossfoot 1c.

In Fig. 2 and embodiment shown in Figure 3:

I-shaped guiding ruler 1 is the metal board foot that is made of last crossfoot 1a, following scale crossfoot 1b and middle perpendicular chi 1c.Last crossfoot 1a and following scale crossfoot 1b are parallel to each other, and with the wheel rim 4b of its medial surface contact wheel 4, and middle perpendicular chi 1c vertically is connected between crossfoot 1a and the following scale crossfoot 1b, with the wheel reference side 4a of its contacts side surfaces wheel 4; There is a through hole 1d on the symcenter plane of last crossfoot 1a and middle perpendicular chi 1c handing-over line, and descend scale crossfoot 1b outside surface to have scale value is 1 millimeter, the scale value scope is 10 millimeters, zero groove is in the symcenter plane of I-shaped guiding ruler 1, and the scale mark upper end is on perpendicular chi 1c in centre and following scale crossfoot 1b handing-over line.In addition, the length of middle perpendicular chi 1c (being that through hole 1d center is to scale mark upper end distance) according to the size of wheel, is determined L=200 millimeter, 400 millimeters two kinds of specifications.

Lifting rope 2 is that an end is connected in the radial direction through hole of threading axle 2a, the interior silk thread of top radial direction through hole that the other end is connected weight 3 (is out of shape little, naturally sagging), its threading axle 2a matches with the through hole 1d of I-shaped guiding ruler 1, expose the termination and be provided with two parallel radial direction through hole, will make its radial direction through hole center line vertical ground when mounted.

Weight 3 is that the upper head plate face has a horizontal central through hole and center vertical core, and the lower end is turbination (be vertex of a cone point down) and the stage casing is cylindrical metal hammer.It is that a steel wire (or pin) places above-mentioned horizontal central through hole axially interior that lifting rope 2 passes center, above-mentioned upper end vertical core, and weight 3 just can be by the lifting rope stirrup.

During measurement, erect the wheel reference side 1a of the side of chi 1c near wheel 4 with the centre, as the positioning reference of measuring, and the medial surface of last crossfoot 1a and following scale crossfoot 1b contacts with wheel rim 4b just as aiding support; The lifting rope 2 of vertical hook covers certain line or the space of scale mark, and the numerical value of lifting rope 2 at the groove upper extreme point is read in the front, is the crooked size that wheel shaft 4c deflection is brought wheel 4, so that according to national standard the wheel verticality is checked.

Claims

1, a kind of crane wheel vertical detection chi comprises lifting rope, weight, it is characterized in that: be provided with the I-shaped guiding ruler that constitutes by last crossfoot, following scale crossfoot and middle perpendicular chi, wherein going up crossfoot and following scale crossfoot is parallel to each other, middle perpendicular chi vertically is connected between crossfoot and the following scale crossfoot, there is a through hole above-mentioned I-shaped guiding ruler upper end, there is scale mark the lower end, and the zero groove in the center line of this through hole and the scale mark is in the central plane of I-shaped guiding ruler.

2, crane wheel vertical detection chi according to claim 1 is characterized in that: the center line of a through hole of above-mentioned I-shaped guiding ruler upper end is on last crossfoot and middle perpendicular chi handing-over line, and the upper end of scale mark is on perpendicular chi in centre and following scale crossfoot handing-over line.