CN204881483U - Large -scale revolving structure spare concentricity location survey instrument - Google Patents

Abstract

The utility model discloses a concentricity positioning and measuring tool for large-scale rotary structural parts, which comprises a spring clamping ring and an arc-shaped positioning plate. The spring clamping ring is connected with the arc-shaped positioning plate. The arc of the arc-shaped positioning plate is The mouth is connected to the measuring bar through bolts; the arc-shaped positioning plate and the bottom of the measuring bar are equipped with height adjustment brackets, and rollers are provided on the height adjustment brackets. The plate spring clamping ring has the characteristics of automatic positioning and positioning after clamping. It is used with vernier calipers and dial indicators to achieve high measurement accuracy. At the same time, the measurement tool has strong mobility and can be easily installed on large workpieces. Take measurements and positions.

Description

A Concentricity Positioning and Measuring Tool for Large Rotating Structural Parts

technical field

The utility model relates to the field of measuring tools, in particular to a concentricity positioning and measuring tool for large-scale rotary structural parts.

Background technique

For some ultra-large structural parts such as supporting cylinders, slewing bearings, and turntables of construction machinery, since the slewing mechanism has certain slewing accuracy requirements relative to the slewing center when performing slewing operations, it is necessary to take measures during the product manufacturing process. The accuracy is tested to meet the requirements of coaxiality accuracy, quality and use. As shown in Figure 1, the large-scale construction machinery slewing device, the slewing support structure is arranged with a central axis, a ring track and a large ring gear. The diameter of the ring gear reaches 8440mm, and the outer diameter of the ring gear is 6580mm. Conventional measuring tools cannot meet the needs of precise measurement and positioning, such as the high cost of purchasing professional measuring tools. In order to solve the measurement of the coaxiality accuracy of the workpiece, we have designed a device that is easy to operate, simple in structure, large in measuring range and low in cost. This device has the ability to determine the position of the concentric structure of large-scale structural parts based on the specified benchmark and the center of rotation based on the ring structure, and can precisely measure the concentricity of large-scale rotary structural parts. Its measurement accuracy can reach 0.01 when used with a dial indicator mm, can effectively solve the above processing problems.

Utility model content

The purpose of this utility model is to provide a concentricity positioning and measuring tool for large-scale rotary structural parts, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A concentricity positioning measurement tool for large-scale rotary structural parts, including a spring clamping ring and an arc positioning plate, the spring clamping ring is connected with the arc positioning plate, and the arc opening of the arc positioning plate is measured by bolt connection Rods; height adjustment brackets are provided under the arc-shaped positioning plate and the measuring rods, and rollers are arranged on the height adjustment brackets.

As a further solution of the utility model: the measuring rod is made of channel steel.

Compared with the prior art, the beneficial effect of the utility model is: the utility model has a simple structure, ingenious application of shape characteristics, the use of the positioning plate spring clamping ring to automatically find and locate the characteristics after clamping, with the vernier caliper and the percentage The measurement accuracy is high. At the same time, the measurement tool is highly mobile and can be easily installed on large workpieces to measure and position the assembly.

Description of drawings

Fig. 1 is a front view of a concentricity positioning and measuring tool for a large-scale rotary structural part of the present invention.

Fig. 2 is a top view of a concentricity positioning and measuring tool for a large-scale rotary structural part of the present invention.

In the figure: 1-spring clamping ring, 2-arc positioning plate, 3-measuring rod, 4-height adjustment bracket, 5-roller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-2. In the embodiment of the present utility model, a concentricity positioning and measuring tool for large-scale rotary structural parts includes a spring clamping ring 1 and an arc-shaped positioning plate 2. The spring clamping ring 1 and the arc-shaped positioning plate The plates 2 are connected, and the arc mouth of the arc positioning plate 2 is connected to the measuring bar 3 by bolts; the height adjusting bracket 4 is provided under the arc positioning plate 2 and the measuring bar 3, and the height adjusting bracket 4 Roller 5 is provided on.

The measuring rod 3 is made of channel steel.

The working principle of the utility model is: when the measuring tool is used, the arc-shaped positioning plate 2 and the measuring rod 3 are combined together by bolt connection, and the height adjustment bracket 4 with the roller 5 is installed on the arc-shaped positioning plate 2 by bolt connection. Position the positioning plate 2 and the measuring rod 3 at a suitable position, set the spring clamping ring 1 of the positioning plate on the central axis of the workpiece and align and fit the arc surface of the arc-shaped positioning plate 2 with the outer arc of the central axis of the workpiece, Adjust the height Adjust the height of the bracket 4 so that the measuring tool is in a horizontal state, install a magnetic dial indicator on the front end of the measuring rod, adjust the position of the pointer and the part of the workpiece to be measured, and rotate the measuring tool at different angles to measure any angle of the entire 360-degree circle The beating accuracy of the dial indicator of the required measurement part of the workpiece can be used to determine the concentric accuracy error between the measurement part and the central axis of the workpiece, and provide a basis for the assembly adjustment of large rotary workpieces.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. A large-scale rotary structural member concentricity positioning measurement tool, characterized in that, comprising a spring clamping ring and an arc positioning plate, the spring clamping ring is connected with the arc positioning plate, and the arc positioning plate The arc opening is connected with the measuring rod by bolts; the arc positioning plate and the measuring rod are provided with height adjustment brackets below, and rollers are arranged on the height adjustment brackets. 2. The concentricity positioning and measuring tool for a large revolving structural member according to claim 1, wherein the measuring rod is made of channel steel.