A ring crane wheel adjustment tool and adjustment method

Abstract

The present invention discloses a wheel adjustment tool and an adjustment method for a ring crane. The adjustment tool comprises two tool connecting rods. Both ends of the tool connecting rods are provided with a ring track simulation plate for the wheels of the ring bridge to travel. The two tool connecting rods are symmetrical about the longitudinal center line of the ring bridge, and the ring track simulation plates at both ends of the tool connecting rods are symmetrical about the transverse center line of the ring bridge. The adjustment method comprises the following steps: S1, adjusting the tool in place; S2, wheel accuracy measurement; S3, measurement data requirements and restrictions; S4, wheel position adjustment. The present invention supports the ring bridge by adjusting the tool, reduces the investment in the ring process track, and adjusts the ring crane wheel to a more precise position by taking some parameter measurements and parameter requirements as the goal. The tool is suitable for wheel measurement and adjustment positioning in the manufacturing process of the ring crane, and has the advantages of simple tool manufacturing method, high measurement accuracy, easy operation and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of ring crane manufacturing, in particular to a ring crane wheel adjustment tool and an adjustment method. Background Art

[0002] Circular cranes are widely used in nuclear power, chemical industry, construction installation and other fields due to their wide operating range, easy movement of hoisted objects, and adaptability to circular operating scenarios.

[0003] The accuracy of the wheels of a circular crane is related to the operating accuracy and safety of the crane. The commonly used method is to make a set of circular process tracks according to the on-site rotation diameter, and adjust the wheels on the circular process tracks according to the relative position of the tracks and wheels, such as Figure 9 As shown, the cost of manufacturing the circular track in this way is high and the cycle is long. In addition, the specific position of the cart wheel and the positional relationship between the track are measured based on the circular process track, which deviates from the actual (theoretical) position, and the precision control is not accurate enough. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a ring crane wheel adjustment tooling and adjustment method, which reduces the investment in the ring process track and is suitable for wheel measurement and adjustment positioning during the ring crane manufacturing process. It has the advantages of simple tooling manufacturing method, high measurement accuracy, easy operation and low cost, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wheel adjustment tool for a ring crane, comprising two tool connecting rods, both ends of which are provided with a ring track simulation plate for the wheels of the ring bridge to run; the two tool connecting rods are symmetrical about the longitudinal center line of the ring bridge, and the ring track simulation plates at both ends of the tool connecting rods are symmetrical about the transverse center line of the ring bridge, and the diameter of the circle where the ring track simulation plate is located is consistent with the rotation diameter of the ring bridge.

[0006] Preferably, the annular track simulation plate is connected to the tooling connecting rod through a bolt and nut group, the end of the tooling connecting rod has a plurality of through holes in a linear array along its length direction, the annular track simulation plate is provided with a waist-shaped hole, and the bolt and nut group passes through the through hole and the waist-shaped hole.

[0007] Preferably, two tooling support frames are provided at the lower portion of the tooling connecting rod.

[0008] Preferably, the annular track simulation plate is an arc-shaped plate having an angular mounting portion, and the angular mounting portion is provided with a waist-shaped hole.

[0009] A method for adjusting a wheel of a ring crane comprises the following steps:

[0010] S1. Adjust the fixtures in place: Using the longitudinal and transverse center lines of the annular bridge as reference, adjust the two adjustment fixtures to a symmetrical state, and ensure that the diameter of the circle where the annular track simulation plate is located is consistent with the rotation diameter of the annular bridge. Fix the two adjustment fixtures to the ends of the main beam of the annular bridge respectively.

[0011] S2. Wheel accuracy measurement:

[0012] Taking the rotation center of the annular bridge as the symmetrical point, measure the center distance between the two corresponding wheel outer end faces, and record them as L1 and L2;

[0013] Measure the center distance between the two tooling connecting rods on the same side, and record it as N1 and N2;

[0014] With the wheel axis as the symmetry line, measure the distances between the inner end faces of the wheels and the inner side of the circular track simulation board. Measure each of the four wheels separately and record them as A1, A2, B1, B2, C1, C2, D1, and D2.

[0015] S3. Measurement data requirements and restrictions:

[0016] The measured values of L1 and L2 are equal to the sum of the turning diameter and the wheel width, and the difference between the measured values of L1 and L2 should be ≤1mm;

[0017] The difference between the measured values of N1 and N2 should be ≤1mm;

[0018] The measurement values of A, B, C, and D are equal to half the difference between the wheel width and the width of the circular track simulation board;

[0019] The measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are the same, and the error is ≤0.1mm;

[0020] S4. Wheel position adjustment:

[0021] If the measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, make precise adjustments to the wheel position.

[0022] Preferably, both ends of the wheel axle are provided with bearing seats, the bearing seats have two mutually perpendicular connecting parts, the connecting parts are in contact with the end beam bent plate of the annular bridge and are connected by bolts, a key plate and an adjustment gasket are provided between the connecting part of the bearing seat and the end beam bent plate of the annular bridge, and the bolts pass through the key plate and the adjustment gasket;

[0023] When adjusting the wheel position, first remove the bolts, and then adjust the wheel position by adding or removing adjustment shims or replacing adjustment shims of different thicknesses or key plates of different thicknesses at the four bearing seats on both sides of the wheel.

[0024] Preferably, the connecting portion of the bearing seat is provided with a keyway for installing a key plate.

[0025] Preferably, L1, L2, N1, and N2 are measured using a ruler, and A1, A2, B1, B2, C1, C2, D1, and D2 are measured using a measuring reference block and a feeler gauge.

[0026] Compared with the prior art, the beneficial effects of the present invention are: by setting up a simple adjustment tool to support the annular bridge, the investment in the traditional annular process track is reduced and the cost is low. After the adjustment tool is in place, some parameters of the wheel are measured and the wheel is accurately adjusted according to the parameter requirements, thereby ensuring the dimensional accuracy of the annular crane wheel and the track. It is suitable for wheel measurement and adjustment positioning during the manufacturing process of the annular crane, and has the advantages of simple tool manufacturing method, high measurement accuracy, and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the adjustment tooling structure of the present invention;

[0028] Figure 2 This is a schematic structural diagram of the annular track simulation board of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation of the adjustment tooling of the present invention;

[0030] Figure 4 It is a schematic diagram of the arrangement of two adjustment tools of the present invention;

[0031] Figure 5 This is a schematic diagram of wheel accuracy measurement parameters of the present invention;

[0032] Figure 6 for Figure 5 A magnified schematic diagram of the local structure;

[0033] Figure 7 This is a schematic diagram of the wheel installation structure of the present invention;

[0034] Figure 8 It is an enlarged schematic diagram of the local structure of the wheel of the present invention;

[0035] Figure 9 Schematic diagram of the traditional ring bridge wheel adjustment.

[0036] In the figure: 1 tooling connecting rod, 1.1 through hole, 1.2 tooling support frame, 2 ring track simulation board, 2.1 waist-shaped hole, 3 adjustment gasket, 4 bolt, 5 bearing seat, 6 key board. DETAILED DESCRIPTION

[0037] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0038] See also Figure 1-9 , the present invention provides the following technical solutions:

[0039] Example 1: A circular crane wheel adjustment tool comprises two tool connecting rods 1, each end of which is provided with a circular track simulation plate 2 for the wheels of the circular bridge to travel; the two tool connecting rods 1 are symmetrical about the longitudinal centerline of the circular bridge, the circular track simulation plates 2 at both ends of the tool connecting rods 1 are symmetrical about the transverse centerline of the circular bridge, and the diameter of the circle in which the circular track simulation plates 2 are located is consistent with the rotation diameter of the circular bridge;

[0040] The circular track simulation plates 2 at both ends of the tooling connecting rod 1 are used to support the movement of the wheels and to model the track. That is, the four-section circular track simulation plates 2 can replace the circular process track, reducing the investment in the circular process track and greatly reducing the cost; the circular track simulation plates 2 can be prepared in multiple sets according to the track model, circular diameter, etc. to adapt to various specifications of circular crane products.

[0041] Example 2 is different from Example 1 in that the annular track simulation plate 2 is connected to the tooling connecting rod 1 through a bolt and nut group. The end of the tooling connecting rod 1 has a plurality of through holes 1.1 in a linear array along its length direction. The annular track simulation plate 2 is provided with a waist-shaped hole 2.1. The bolt and nut group passes through the through hole 1.1 and the waist-shaped hole 2.1. The position of the annular track simulation plate 2 is adjusted by setting a plurality of through holes 1.1 and the waist-shaped hole 2.1. The size of the annular track simulation plate 2 is adaptively adjusted to ensure that the center of the circle where the annular track simulation plate 2 is located is located at the rotation center of the annular crane.

[0042] Example 3 is different from Example 1 in that two tooling support frames 1.2 are provided at the lower part of the tooling connecting rod 1 to support and elevate the tooling connecting rod 1; the annular track simulation plate 2 is an arc-shaped plate having an angular mounting portion, and the angular mounting portion is provided with a waist-shaped hole 2.1.

[0043] A method for adjusting a wheel of a ring crane comprises the following steps:

[0044] S1. Adjust the fixtures into place: Using the longitudinal and transverse center lines of the annular bridge as reference, adjust the two adjustment fixtures to a symmetrical state, and ensure that the diameter of the circle where the annular track simulation plate 2 is located is consistent with the rotation diameter of the annular bridge. Fix the two adjustment fixtures to the ends of the main beam of the annular bridge respectively.

[0045] S2. Wheel accuracy measurement:

[0046] Taking the rotation center of the annular bridge as the symmetrical point, measure the center distance between the two corresponding wheel outer end faces, and record them as L1 and L2;

[0047] Measure the center distance between the two ends of the tooling connecting rods 1 on the same side, and record it as N1 and N2;

[0048] With the wheel axis as the symmetry line, measure the distances between the inner end faces of the wheels and the inner side of the circular track simulation board 2. Measure the distances for each of the four wheels, denoted as A1, A2, B1, B2, C1, C2, D1, and D2.

[0049] S3. Measurement data requirements and restrictions:

[0050] The measured values of L1 and L2 are equal to the sum of the turning diameter and the wheel width, and the difference between the measured values of L1 and L2 should be ≤1mm;

[0051] The difference between the measured values of N1 and N2 should be ≤1mm;

[0052] The measurement values of A, B, C, and D are equal to half the difference between the wheel width and the width of the circular track simulation board;

[0053] The measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are the same, and the error is ≤0.1mm;

[0054] S4. Wheel position adjustment:

[0055] If the measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, make precise adjustments to the wheel position.

[0056] The adjustment method is as follows:

[0057] A bearing seat 5 is provided at both ends of the wheel axle of the ring crane. The bearing seat 5 has two mutually perpendicular connection parts, namely a vertical connection part and a horizontal connection part. The connection parts are in contact with the end beam bent plate of the ring bridge. The bearing seat 5 is connected to the end beam bent plate of the ring bridge by bolts 4. That is, the vertical connection part and the horizontal connection part are fixedly connected to the end beam bent plate of the ring bridge by bolts 4. A key plate 6 and an adjustment gasket 3 are provided between the connection part of the bearing seat 5 and the end beam bent plate of the ring bridge. The bolts 4 pass through the key plate 6 and the adjustment gasket 3.

[0058] When adjusting the wheel position, first remove the bolts 4, and adjust the wheel position by adding or removing the adjustment gaskets 3 or replacing the adjustment gaskets 3 with different thicknesses or replacing the key plates 6 with different thicknesses at the four bearing seats 5 on both sides of the wheel; that is, by adding or removing the adjustment gaskets 3 or replacing the adjustment gaskets 3 with different thicknesses or replacing the key plates 6 with different thicknesses at the vertical connection parts of the bearing seats 5 at both ends of the wheel, and adjusting the distance between the two sides of the inner end face of the wheel and the inner side of the annular track simulation board 2, the wheel deflection can be adjusted to ensure that the wheel axis points to the rotation center of the annular crane, thereby achieving precise adjustment of the four wheel positions, and by adding or removing the adjustment gaskets 3 or replacing the adjustment gaskets 3 with different thicknesses or replacing the key plates 6 with different thicknesses at the horizontal connection parts of the bearing seats 5 at both ends of the wheel, the wheel height can be adjusted to ensure that the wheel always fits the track.

[0059] In addition, the connecting part of the bearing seat 5 is provided with a keyway for installing the key plate 6, which is convenient for installation and positioning; L1, L2, N1, and N2 are measured with a ruler, and A1, A2, B1, B2, C1, C2, D1, and D2 are measured with a measuring reference block and a feeler gauge.

[0060] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the content of the present invention.

Claims

1. A wheel adjustment tool for a ring crane, characterized by: The invention comprises two tool connecting rods (1), both ends of which are provided with annular track simulation plates (2) for the wheels of an annular bridge to travel on; the two tool connecting rods (1) are symmetrical about the longitudinal center line of the annular bridge, the annular track simulation plates (2) at both ends of the tool connecting rods (1) are symmetrical about the transverse center line of the annular bridge, and the diameter of the circle where the annular track simulation plates (2) are located is consistent with the rotation diameter of the annular bridge.

2. The wheel adjustment tool for a ring crane according to claim 1, characterized in that: The annular track simulation plate (2) is connected to the tool connecting rod (1) via a bolt and nut assembly; the end of the tool connecting rod (1) has a plurality of through holes (1.1) in a linear array along its length; the annular track simulation plate (2) is provided with a waist-shaped hole (2.1); and the bolt and nut assembly passes through the through hole (1.1) and the waist-shaped hole (2.1).

3. The wheel adjustment tool for a ring crane according to claim 1, characterized in that: Two tool support frames (1.2) are provided at the lower part of the tool connecting rod (1).

4. The wheel adjustment tool for a ring crane according to claim 1, characterized in that: The annular track simulation plate (2) is an arc-shaped plate having an angular mounting portion, and the angular mounting portion is provided with a waist-shaped hole (2.1).

5. A method for adjusting the wheel of a ring crane, using the ring crane wheel adjustment tool according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Adjust the fixtures in place: with the longitudinal and transverse center lines of the annular bridge as the reference, adjust the two adjustment fixtures to a symmetrical state, and keep the diameter of the circle where the annular track simulation board (2) is located consistent with the rotation diameter of the annular bridge, and fix the two adjustment fixtures respectively at the ends of the main beam of the annular bridge; S2. Wheel accuracy measurement: Taking the rotation center of the annular bridge as the symmetrical point, measure the center distance between the two corresponding wheel outer end faces, and record them as L1 and L2; Measure the center distance between the two side ends of the two tooling connecting rods (1), and record it as N1 and N2; Taking the wheel axis as the symmetry line, measure the distances between the inner end faces of the wheels and the inner side faces of the annular track simulation board (2). Measure the distances for the four wheels separately and record them as A1, A2, B1, B2, C1, C2, D1, and D2. S3. Measurement data requirements and restrictions: The measured values of L1 and L2 are equal to the sum of the turning diameter and the wheel width, and the difference between the measured values of L1 and L2 should be ≤1mm; The difference between the measured values of N1 and N2 should be ≤1mm; The measurement values of A, B, C, and D are equal to half the difference between the wheel width and the width of the circular track simulation board; The measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are the same, and the error is ≤0.1mm; S4. Wheel position adjustment: If the measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, make precise adjustments to the wheel position.

6. The method for adjusting the wheels of a circular crane according to claim 5, characterized in that: Both ends of the wheel axle are provided with bearing seats (5), the bearing seats (5) have two mutually perpendicular connecting parts, the connecting parts are attached to the end beam bent plate of the annular bridge and connected by bolts (4), a key plate (6) and an adjustment gasket (3) are provided between the connecting part of the bearing seat (5) and the end beam bent plate of the annular bridge, and the bolts (4) pass through the key plate (6) and the adjustment gasket (3); When adjusting the wheel position, first remove the bolt (4), and adjust the wheel position by adding or removing the adjustment shims (3) or replacing the adjustment shims (3) with different thicknesses or replacing the key plates (6) with different thicknesses at the four bearing seats (5) on both sides of the wheel.

7. The method for adjusting the wheels of a circular crane according to claim 6, characterized in that: The connecting portion of the bearing seat (5) is provided with a keyway for mounting a key plate (6).

8. The method for adjusting the wheels of a circular crane according to claim 5, characterized in that: L1, L2, N1, and N2 are measured with a tape measure, and A1, A2, B1, B2, C1, C2, D1, and D2 are measured with a measuring reference block and a feeler gauge.

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