Rotating shaft device of laser measurement receiver

Abstract

The utility model belongs to the technical field of measurement, and particularly relates to a rotating shaft device of a laser measurement receiver, which comprises a seat plate. A supporting rod is arranged on the seat plate; the rotating device is arranged on the supporting rod, and the rotating device can be installed on the supporting rod in the forward direction and the reverse direction; the laser transmitter is arranged on the outer side of the to-be-measured bearing, and the laser transmitter emits light to the axis of the to-be-measured bearing; the measuring device is arranged on the rotating device, the measuring device can perform rotary measurement through the rotating device, and the measuring device comprises an L-shaped folded plate seat; the L-shaped folded plate seat is provided with a laser receiver, the laser receiver is used for receiving light emitted by the laser emitter, the laser receiver is provided with a detection assembly, and the detection assembly can abut against the inner surface of the aperture of the bearing to be detected. The rotating device can be installed on the supporting rod in the forward direction and the reverse direction, the rotating device can be adjusted to be arranged in front of or behind the laser receiver according to the position condition of the base plate in the rotating shaft to be measured, and measurement is more flexible.

Description

Technical Field

[0001] The utility model belongs to the field of measurement technology, and in particular relates to a laser measurement receiver shaft device. Background Art

[0002] During shipbuilding and maintenance, it is often necessary to measure the straightness of the stern tube bearing hole of the rudder system ship to check whether the actual straightness of the bearing axis meets the design value and operation requirements.

[0003] When using a laser instrument to measure the axis, a laser transmitter is placed at one end of the axis, and a laser receiver is placed at each aperture position on the axis. When the probe feeler of the receiver touches the inner surface of the aperture, the sensing panel of the receiver forms a "sensing point" facing the incoming laser beam. When the receiver is centered on the rotating axis and the probe feeler moves evenly around the aperture surface, a fitting circle composed of lines connecting multiple "sensing points" is formed. The center of the fitting circle is the center of the measured aperture, and the relative position of the center and the reference axis in the radial direction is the actual offset value of the aperture.

[0004] In the actual measurement process, the laser receiver must always face the laser transmitter, and the shaft is set on the back of the receiver. The shaft seat is fixed to the base plate of the device through the support rod. The base plate has a certain width in the axial direction of the hole. When the far end surface of the base plate (the one close to the laser transmitter is the near end, and the one far away from the laser transmitter is the far end) is flush with the far end surface of the shaft hole, the laser receiver detection rod contact foot is restricted by the width of the base plate. At this time, there is still a distance from the aperture center to the far end surface of the hole that has not been measured. For details, Figure 1 The longer this distance is, the greater the influence of the aperture at the unmeasured position on the judgment of the axis condition. Utility Model Content

[0005] The purpose of the utility model is to provide a laser measurement receiver shaft device, aiming to solve the technical problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the embodiment of the present utility model provides a laser measurement receiver shaft device, which is used to check whether the actual straightness of the bearing axis meets the design value and operation requirements, including a seat plate; a support rod is provided on the seat plate;

[0007] A rotating device is provided on the support rod, and the rotating device can be installed on the support rod in forward and reverse directions;

[0008] A laser emitter, which is arranged outside the bearing to be tested and emits light toward the axis of the bearing to be tested;

[0009] The measuring device is arranged on the rotating device, and the measuring device can perform rotation measurement through the rotating device, the measuring device comprises an L-shaped folding plate seat; a laser receiver is arranged on the L-shaped folding plate seat, the laser receiver is used for receiving light emitted by the laser emitter, and a detection assembly is arranged on the laser receiver and can abut against the inner surface of the hole of the bearing to be measured.

[0010] Optionally, the laser receiver is provided with a receiving panel, and the receiving panel is aligned with the laser emitter.

[0011] Optionally, the rotating device comprises a needle bearing seat, a needle bearing is arranged in the needle bearing seat, and a hollow rotating shaft is arranged in the needle bearing.

[0012] Optionally, one end of the hollow rotating shaft is provided with a lock nut.

[0013] Optionally, the L-shaped folding plate seat is detachably arranged on the front side of the hollow rotating shaft.

[0014] Optionally, the detection assembly comprises a guide rod and a connecting plate, the guide rod is connected with the laser receiver through the L-shaped folding plate seat, the connecting plate is slidably arranged on the guide rod, and a detection rod is arranged on the connecting plate.

[0015] Optionally, a spring is arranged on the guide rod and between the L-shaped folding plate seat and the connecting plate.

[0016] Optionally, the number of the guide rods is two.

[0017] Optionally, the bottom of the seat plate is further provided with a strong magnetic column.

[0018] Compared with the prior art, the one or more technical solutions in the high-sealing measurement provided by the embodiment of the utility model have at least one of the following technical effects:

[0019] The rotating device can be installed on the supporting rod in the forward direction or the reverse direction, the rotating device can be adjusted to be arranged in front of or behind the laser receiver according to the position of the seat plate in the bearing to be measured, the measurement is more flexible, the problem that the laser receiver detection rod contact foot is away from the hole distal end and the hole diameter center is not measured is solved, and the measurement result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 For the background of the utility model reference schematic diagram.

[0022] Figure 2 For the rotating device of the utility model is located in the structure schematic diagram of laser receiver after.

[0023] Figure 3 For the rotating device of the utility model is located in the structure schematic diagram of laser receiver before.

[0024] In the figure, various reference signs:

[0025] 100, seat plate;110, support rod;

[0026] 200, laser emitter;

[0027] 300, laser receiver;310, receiving panel;

[0028] 400, bearing to be measured;

[0029] 510, L-shaped folded plate seat;520, guide rod;530, connecting plate;540, detection rod;550, spring;

[0030] 610, needle roller bearing seat;620, needle roller bearing;630, hollow rotating shaft;640, lock nut;

[0031] 700, strong magnetic column. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the embodiments of the utility model, and cannot be understood as a limitation of the utility model.

[0033] In the description of the embodiments of the utility model, it is understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0035] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0036] In one embodiment of the utility model, according to Figures 1-3 As shown in the figure, a laser measurement receiver shaft device is applied to check whether the actual bearing axis straightness meets the design value and operation requirement, comprising a seat plate 100; the seat plate 100 is provided with a support rod 110;

[0037] A rotating device is arranged on the support rod 110, and the rotating device can be installed on the support rod 110 in forward and reverse directions;

[0038] A laser emitter 200 is arranged on the outside of the bearing to be measured 400, and the laser emitter 200 emits light to the axis of the bearing to be measured 400;

[0039] A measuring device is arranged on the rotating device, and the measuring device can be rotated by the rotating device, and the measuring device comprises an L-shaped folding plate seat 510; the L-shaped folding plate seat 510 is provided with a laser receiver 300, the laser receiver 300 is used for receiving the light emitted by the laser emitter 200, and the laser receiver 300 is provided with a detection assembly, and the detection assembly can top touch the aperture inner surface of the bearing to be measured 400.

[0040] Specifically, the rotating device can be installed on the support rod 110 in forward and reverse directions, and the rotating device can be adjusted in front of or behind the laser receiver 300 according to the position of the seat plate 100 in the shaft to be measured, so that the measurement is more flexible, and the problem that the laser receiver 300 detection rod 540 touch foot is far away from the hole distal end face, and there is still a distance from the aperture center of the hole is not measured is solved, and the measurement result is more accurate.

[0041] Further, the seat plate 100 does not affect the rotation and radial telescopic movement of the laser receiver 300 and the measuring device.

[0042] In another embodiment of the present application, according to Figure 1 and 2 As shown in the drawings, the laser receiver 300 is provided with a receiving panel 310, which is aligned with the laser emitter 200. Specifically, the receiving panel 310 can receive the laser emitted by the laser emitter 200 and display a light spot on the receiving panel 310.

[0043] In another embodiment of the present application, according to Figure 2 As shown in the drawings, the rotating device includes a needle bearing seat 610, the needle bearing seat 610 is provided with a needle bearing 620, and a hollow rotating shaft 630 is arranged in the needle bearing 620. The hollow rotating shaft 630 is provided with a lock nut 640 at one end. The L-shaped folding seat 510 is detachably arranged on the front side of the hollow rotating shaft 630.

[0044] Specifically, when the rotating device is adjusted in front of the laser receiver 300, the shaft hole of the hollow rotating shaft 630 facilitates the transmission of laser. Since the diameter of the hollow hole is larger than that of the receiver panel, the receiver panel can normally receive the incident laser beam, solving the problem of the solid shaft that cannot transmit. Further, the needle bearing 620 is adopted to ensure the radial constraint when the shaft rotates, improving the centering accuracy when the hollow rotating shaft 630 rotates.

[0045] It can be understood that when the rotating device is installed in the forward direction on the support rod 110, the L-shaped folding seat 510 is arranged in the forward position, and at this time the laser receiver 300 is arranged in front of the rotating device; when the rotating device is installed in the reverse direction on the support rod 110, the L-shaped folding seat 510 is arranged in the reverse position, and at this time the laser receiver 300 is arranged behind the rotating device.

[0046] In another embodiment of the present application, according to Figure 2 As shown in the drawings, the detection assembly includes a guide rod 520 and a connecting plate 530; the guide rod 520 passes through the L-shaped folding seat 510 and is connected with the laser receiver 300, the connecting plate 530 is slidably arranged on the guide rod 520, and the connecting plate 530 is provided with a detection rod 540. The guide rod 520 is provided with a spring 550, and the spring 550 is arranged between the L-shaped folding seat 510 and the connecting plate 530. The number of guide rods 520 is two. Specifically, the guide rod 520 is connected with the detection rod 540 through the connecting plate 530, and the extension length of the detection rod 540 can be adjusted according to the size of the aperture. In order to facilitate measurement, the spring 550 is installed on the guide rod, and the tension of the spring 550 can make the detection rod 540 have a stable pre-tightening force, so as to reduce the unevenness of the force when the detection rod 540 is manually held.

[0047] In another embodiment of the present application, according to Figure 2 and 3As shown, the seat plate 100 bottom is further provided with a strong magnetic column 700, specifically, the strong magnetic column 700 can provide stable adsorption support, the strong magnetic column 700 itself has strong adsorption to steel metal, and the column length can be selected to place it on a specially designed base to provide stable adsorption support, avoiding its dumping or moving.

[0048] In another embodiment of the present application, according to Figures 1-3 As shown, the measurement method of the laser measurement receiver rotating shaft device, characterized in that, comprising the following steps: S1, fixing the laser emitter 200 on the outside of the bearing to be measured 400, so that the laser emitter 200 emits light to the axis of the bearing to be measured 400; S2, the laser receiver 300 is installed in front of or behind the hollow rotating shaft 630, facing the laser emitter 200; S3, the probe rod 540 touches the aperture inner surface of the bearing to be measured 400, and the receiving panel 310 faces the incoming laser beam to form a sensing point; S4, taking the hollow rotating shaft 630 as the center, the probe rod 540 uniformly surrounds the aperture surface for one circle, forming a fitting circle composed of multiple sensing point connecting lines, and the center of the fitting circle is the center of the measured aperture, and the relative position of the center and the reference axis in the radial direction is the actual offset value of the aperture.

[0049] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, the architecture form can be flexible and variable without departing from the concept of the present application, and a series of products can be derived. Only a few simple deductions or substitutions should be considered as belonging to the patent protection range determined by the submitted claims.

Claims

1. A laser measuring receiver rotating shaft device applied to check whether the actual bearing axis straightness meets the design value and operation requirement, characterized in that, The seat plate is provided with a support rod; A rotating device is arranged on the support rod, and the rotating device can be installed on the support rod in a forward or reverse direction; A laser emitter is arranged outside the bearing to be measured, and the laser emitter emits light rays to the axis of the bearing to be measured; A measuring device is arranged on the rotating device, and the measuring device can perform rotational measurement through the rotating device. The measuring device comprises an L-shaped folding plate seat. The L-shaped folding plate seat is provided with a laser receiver for receiving the light rays emitted by the laser emitter. The laser receiver is provided with a detection assembly which can touch the inner surface of the aperture of the bearing to be measured.

2. The laser measurement receiver swivel apparatus of claim 1, wherein, The laser receiver is provided with a receiving panel which is aligned with the laser emitter.

3. The laser measurement receiver swivel apparatus of claim 2, wherein, The rotating device comprises a needle bearing seat. The needle bearing seat is provided with a needle bearing. A hollow rotating shaft is arranged in the needle bearing.

4. The laser measurement receiver swivel apparatus of claim 3, wherein, One end of the hollow rotating shaft is provided with a lock nut.

5. The laser measurement receiver swivel apparatus of claim 3, wherein, The L-shaped folding plate seat is detachably arranged on the front side of the hollow rotating shaft.

6. The laser measurement receiver swivel apparatus of claim 1, wherein, The detection assembly comprises a guide rod and a connecting plate. The guide rod passes through the L-shaped folding plate seat and is connected with the laser receiver. The connecting plate is slidably arranged on the guide rod. The connecting plate is provided with a detection rod.

7. The laser measurement receiver swivel apparatus of claim 6, wherein, A spring is arranged on the guide rod, and the spring is arranged between the L-shaped folding plate seat and the connecting plate.

8. The laser measurement receiver swivel apparatus of claim 6, wherein, The number of guide rods is two.

9. The laser measurement receiver swivel apparatus of claim 1, wherein, The bottom of the seat plate is further provided with a strong magnetic column.

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