Annular crane wheel adjusting tool and adjusting method

Abstract

The invention discloses an annular crane wheel adjusting tool and an adjusting method.The adjusting tool comprises two tool connecting rods, the two ends of each tool connecting rod are each provided with an annular track simulation plate for wheels of an annular bridge to walk, and the two tool connecting rods are symmetrical about the longitudinal center line of the annular bridge; the annular track simulation plates at the two ends of the tool connecting rod are symmetrical about the transverse center line of the annular bridge. The adjusting method comprises the following steps that S1, the tool is adjusted to be in place; s2, wheel precision measurement; s3, measuring data requirements and limiting conditions; s4, adjusting the positions of the wheels; according to the invention, the annular bridge frame is supported by the adjusting tool, the investment of an annular process rail is reduced, the wheel of the annular crane is adjusted to a more accurate position by taking some parameter measurement and parameter requirements as targets, and the method is suitable for wheel measurement and adjusting positioning in the manufacturing process of the annular crane; the method has the advantages of simple tool manufacturing method, high measurement precision, easy operation, low cost and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing ring cranes, and specifically to a wheel adjustment tooling and adjustment method for ring cranes. Background Art

[0002] Due to its characteristics such as a wide operating range, convenient movement of the lifted object, and adaptation to circular operation scenarios, ring cranes are widely used in fields such as nuclear power, chemical industry, construction and installation, etc.

[0003] The accuracy of the running wheels of a ring crane is related to the running accuracy and the safety of crane use. Currently, the commonly used method is to make a set of circular process tracks according to the on-site slewing diameter, and adjust the wheels according to the relative positions of the track and the wheels on the circular process track. As Figure 9 shown, using this method to make the process circular track has a high cost, a long cycle, and the specific position of the trolley wheels and the position relationship with the track are measured based on the circular process track, which has a deviation from the actual (theoretical) position, and the accuracy control is not precise 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 wheel adjustment tooling and adjustment method for ring cranes, which reduces the investment in circular process tracks, is applicable to the wheel measurement and adjustment positioning during the manufacturing process of ring cranes, and 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 art.

[0005] To achieve the above object, the present invention provides the following technical solution: A wheel adjustment tooling for a ring crane, including two tooling connecting rods, and both ends of the tooling connecting rods are provided with circular track simulation plates for the wheels of the circular bridge to travel; the two tooling connecting rods are symmetric about the longitudinal center line of the circular bridge, and the circular track simulation plates at both ends of the tooling connecting rods are symmetric about the transverse center line of the circular bridge, and the diameter of the circle where the circular track simulation plate is located is consistent with the slewing diameter of the circular bridge.

[0006] Preferably, the circular track simulation plate is connected to the tooling connecting rod through a bolt-nut group. A plurality of through holes are linearly arranged along the length direction at the end of the tooling connecting rod, and the circular track simulation plate is provided with kidney-shaped holes, and the bolt-nut group passes through the through holes and the kidney-shaped holes.

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

[0008] Preferably, the circular track simulation plate is an arc-shaped plate, and the arc-shaped plate has an angular mounting part, and the kidney-shaped hole is opened on the angular mounting part.

[0009] A wheel adjustment method for a ring crane includes the following steps: S1. Adjusting tooling in place: With the longitudinal and transverse centerlines of the ring bridge as the reference, adjust the two adjusting toolings to a symmetrical state, and ensure that the diameter of the circle where the ring track simulation plate is located is the same as the turning diameter of the ring bridge. Fix the two adjusting toolings respectively at the ends of the main girders of the ring bridge. S2. Wheel precision measurement: Taking the center of rotation of the ring bridge as the symmetry point, measure the center distances between the outer end faces of two corresponding wheels, denoted as L1 and L2. Measure the center distances between the same-side ends of the connecting rods of the two toolings, denoted as N1 and N2. Taking the wheel axis as the symmetry line, measure the distances between the two sides of the inner end face of the wheel and the inner side face of the ring track simulation plate. Measure the four wheels respectively, denoted as A1, A2, B1, B2, C1, C2, D1, D2. S3. Measurement data requirements and limiting conditions: 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 ≤ 1 mm. The difference between the measured values of N1 and N2 should be ≤ 1 mm. The measured values of A, B, C, and D are equal to half of the difference between the wheel width and the width of the ring track simulation plate. The measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are the same, and their error values should be ≤ 0.1 mm. S4. Wheel position adjustment: If the measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, precisely adjust the wheel position.

[0010] Preferably, bearing seats are provided at both ends of the wheel axle of the wheel. The bearing seat has two connecting parts perpendicular to each other. The connecting parts are attached to the end beam bent plate of the ring bridge and connected by bolts. A key plate and an adjusting gasket are provided between the connecting parts of the bearing seat and the end beam bent plate of the ring bridge, and the bolt passes through the key plate and the adjusting gasket. When adjusting the wheel position, first remove the bolts, and adjust the wheel position by correspondingly increasing or decreasing the adjusting gaskets or replacing adjusting gaskets with different thicknesses or replacing key plates with different thicknesses at the four bearing seats on both sides of the wheel.

[0011] Preferably, key grooves for installing key plates are provided on the connecting parts of the bearing seat.

[0012] Preferably, L1, L2, N1, and N2 are measured using a tape measure, and A1, A2, B1, B2, C1, C2, D1, and D2 are measured using a measuring reference block and a feeler gauge in cooperation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a simple adjustment tooling to support the ring bridge, the investment in traditional ring process tracks is reduced and the cost is low. After the adjustment tooling is in place, by measuring some parameters of the wheels and making precise adjustments to the wheels according to the parameter requirements, the dimensional accuracy between the wheels of the ring crane and the track is ensured, which is applicable to the measurement and adjustment positioning of the wheels during the manufacturing process of the ring crane, and has the advantages of simple tooling manufacturing method, high measurement accuracy, and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the adjustment tooling of the present invention; Figure 2 is a schematic structural diagram of the ring track simulation board of the present invention; Figure 3 is a schematic installation diagram of the adjustment tooling in place of the present invention; Figure 4 is a schematic layout diagram of two adjustment toolings of the present invention; Figure 5 is a schematic diagram of the wheel precision measurement parameters of the present invention; Figure 6 is Figure 5 a partial structural enlarged schematic diagram of; Figure 7 is a schematic installation structure diagram of the wheel of the present invention; Figure 8 is a partial structural enlarged schematic diagram of the wheel of the present invention; Figure 9 is a schematic diagram of the wheel adjustment of the traditional ring bridge.

[0015] In the figure: 1 tooling connecting rod, 1.1 through hole, 1.2 tooling support frame, 2 ring track simulation board, 2.1 kidney-shaped hole, 3 adjustment gasket, 4 bolt, 5 bearing seat, 6 key plate. DETAILED DESCRIPTION OF THE INVENTION

[0016] 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", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present application for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0017] Please refer to Figures 1-9 , the present invention provides the following technical solutions: Embodiment 1: An adjustment tooling for the wheels of a ring crane, comprising two tooling connecting rods 1. At both ends of the tooling connecting rod 1, there are annular track simulation plates 2 for the wheels of the ring bridge to run on. The two tooling connecting rods 1 are symmetric about the longitudinal center line of the ring bridge, and the annular track simulation plates 2 at both ends of the tooling connecting rod 1 are symmetric about the transverse center line of the ring bridge. The diameter of the circle where the annular track simulation plate 2 is located is the same as the slewing diameter of the ring bridge. The wheels are supported to run by the annular track simulation plates 2 at both ends of the tooling connecting rod 1, which are used to model the track. That is, four annular track simulation plates 2 can replace the annular process track, reducing the investment in the annular process track and greatly reducing the cost. Multiple sets of annular track simulation plates 2 can be prepared according to the track model, annular diameter, etc. to adapt to various specifications of ring crane products.

[0018] Embodiment 2, different from Embodiment 1, the annular track simulation plate 2 is connected to the tooling connecting rod 1 through a bolt-nut group. Along the length direction of the end of the tooling connecting rod 1, a plurality of through holes 1.1 are linearly arrayed. The annular track simulation plate 2 is provided with kidney-shaped holes 2.1. The bolt-nut group passes through the through holes 1.1 and the kidney-shaped holes 2.1. By setting a plurality of through holes 1.1 and kidney-shaped holes 2.1, the position of the annular track simulation plate 2 is adjusted, and it is adjusted adaptively according to the size of the annular track simulation plate 2 to ensure that the center of the circle where the annular track simulation plate 2 is located is at the slewing center of the ring crane.

[0019] Embodiment 3, different from Embodiment 1, two tooling support frames 1.2 are provided at the lower part of the tooling connecting rod 1 to support and lift the tooling connecting rod 1. The annular track simulation plate 2 is an arc-shaped plate, and the arc-shaped plate has an angular mounting part, and a kidney-shaped hole 2.1 is opened in the angular mounting part.

[0020] An adjustment method for the wheels of a ring crane includes the following steps: S1. Adjustment tooling in place: Based on the longitudinal and transverse center lines of the ring bridge, the two adjustment toolings are adjusted to a symmetric state, and the diameter of the circle where the annular track simulation plate 2 is located is the same as the slewing diameter of the ring bridge. The two adjustment toolings are respectively fixed at the ends of the main beam of the ring bridge. S2. Wheel precision measurement: Taking the slewing center of the ring bridge as the symmetry point, measure the center distances between the outer end faces of two corresponding wheels, denoted as L1 and L2; Measure the center distances between the same-side ends of the two tooling connecting rods 1, denoted as N1 and N2; Taking the wheel axis as the symmetry line, measure the distances between the two sides of the inner end face of the wheel and the inner side face of the annular track simulation plate 2, and measure the four wheels respectively, denoted as A1, A2, B1, B2, C1, C2, D1, D2; S3. Measurement data requirements and limiting conditions: The measured values of L1 and L2 are equal to the sum of the swing diameter and the wheel width, and the difference between the measured values of L1 and L2 should be ≤ 1 mm; The difference between the measured values of N1 and N2 should be ≤ 1 mm; The measured values of A, B, C, and D are equal to half of the difference between the wheel width and the width of the annular track simulation plate; The measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are the same, and their error values are ≤ 0.1 mm; S4. Wheel position adjustment: If the measured values of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, precisely adjust the wheel position.

[0021] The adjustment method is as follows: Both ends of the axle of the wheel of the gantry crane are provided with bearing seats 5. The bearing seat 5 has two connecting parts perpendicular to each other, namely a vertical connecting part and a horizontal connecting part. The connecting parts are attached to the end beam bent plate of the gantry bridge. The bearing seat 5 is connected to the end beam bent plate of the gantry bridge through bolts 4, that is, both the vertical connecting part and the horizontal connecting part are fixedly connected to the end beam bent plate of the gantry bridge through bolts 4. A key plate 6 and an adjusting gasket 3 are provided between the connecting part of the bearing seat 5 and the end beam bent plate of the gantry bridge, and the bolt 4 passes through the key plate 6 and the adjusting gasket 3; When adjusting the wheel position, first remove the bolt 4, and adjust the wheel position by correspondingly increasing or decreasing the adjusting gasket 3 or replacing the adjusting gasket 3 with different thicknesses or replacing the key plate 6 with different thicknesses at the four bearing seats 5 on both sides of the wheel; that is, by increasing or decreasing the adjusting gasket 3 or replacing the adjusting gasket 3 with different thicknesses or replacing the key plate 6 with different thicknesses at the vertical connecting parts of the bearing seats 5 at both ends of the wheel, adjust the distance between the two inner sides of the inner end surface of the wheel and the inner side surface of the annular track simulation plate 2, so as to adjust the wheel deviation, ensure that the wheel axis points to the center of rotation of the gantry crane, and realize the precise adjustment of the positions of the four wheels. By increasing or decreasing the adjusting gasket 3 or replacing the adjusting gasket 3 with different thicknesses or replacing the key plate 6 with different thicknesses at the horizontal connecting parts of the bearing seats 5 at both ends of the wheel, adjust the wheel height to ensure that the wheel always fits the track.

[0022] 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 tape measure, and A1, A2, B1, B2, C1, C2, D1, and D2 are measured by cooperating a measuring reference block and a feeler gauge.

[0023] The parts not detailed in the present invention are prior arts. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, aiming to include all changes falling within the meaning and scope of equivalent elements in the content of the present invention.

Claims

1. A wheel adjustment tool for a ring crane, characterized in that: The invention comprises two tooling connecting rods (1), both ends of which are provided with an annular track simulation plate (2) for the wheels of an annular bridge to travel on; the two tooling 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 tooling 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 plate (2) is 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 tooling connection rod (1) via a bolt and nut set; the end of the tooling connection 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); and the bolt and nut set 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 tooling support frames (1.2) are provided at the lower part of the tooling connection 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 circular crane, using the circular crane wheel adjustment tool as described in 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 reference, adjust the two adjustment fixtures to a symmetrical state, and keep the diameter of the circle where the annular track simulation plate (2) is located consistent with the rotation diameter of the annular bridge, and fix the two adjustment fixtures to the ends of the main beam of the annular bridge respectively; S2. Wheel accuracy measurement: Taking the rotation center of the annular bridge as the symmetric point, measure the center distance between the two corresponding outer end faces of the wheels, which is recorded as L1 and L2; Measure the center distance between the two ends of the two tooling connecting rods (1) on the same side, and record it as N1 and N2; Taking the wheel axis as the symmetry line, measure the distances between the two sides of the inner end surface of the wheel and the inner side surface of the circular track simulation plate (2), and measure the distances for the four wheels respectively, which are recorded 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 measured values ​​of A, B, C, and D are equal to half of 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 their error values ​​are ≤0.1mm; S4. Wheel position adjustment: If the measured values ​​of A1, A2, B1, B2, C1, C2, D1, and D2 are out of tolerance, the wheel position should be adjusted accurately.

6. A 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 frame and connected via bolts (4), a key plate (6) and an adjusting gasket (3) are provided between the connecting part of the bearing seat (5) and the end beam bent plate of the annular bridge frame, and the bolts (4) pass through the key plate (6) and the adjusting gasket (3); When adjusting the wheel position, first remove the bolt (4), and adjust the wheel position by correspondingly adding or removing the adjustment shims (3) at the four bearing seats (5) on both sides of the wheel or replacing the adjustment shims (3) with different thicknesses or replacing the key plates (6) with different thicknesses.

7. A method for adjusting wheels of a ring 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. A method for adjusting wheels of a ring 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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