Axle tube axis centering deviation value measurement auxiliary device

Abstract

The utility model discloses a shaft tube axis centering deviation value measurement auxiliary device, which comprises a frame, an adjusting rod, a guide rod, a support rod and a guide wheel, the adjusting rod and the guide rod are longitudinally arranged on the frame, the adjusting rod and the guide rod are spaced by a certain distance and are parallel to each other, a first sliding sleeve is movably sleeved on the adjusting rod, and a second sliding sleeve is sleeved on the guide rod. The height position of the first sliding sleeve is adjusted through a first adjusting mechanism installed on the adjusting rod, the guide rod is sleeved with a second sliding sleeve, the two ends of the supporting rod are connected with the first sliding sleeve and the second sliding sleeve respectively, the supporting rod is movably sleeved with the guide wheel, and an annular groove is formed in the outer circumference of the guide wheel. The left-right position of the guide wheel is adjusted through a second adjusting mechanism installed on the supporting rod. Through the structure, the position of the steel wire can be conveniently adjusted, so that the centering deviation value of the short shaft tube and the stern shaft tube can be conveniently measured on site.

Description

Technical Field

[0001] This utility model relates to the field of ship maintenance auxiliary tools, and in particular to an auxiliary device for measuring the alignment deviation of shaft tube axis. Background Technology

[0002] In remote mountainous areas, lakes, inland rivers, and other places without ship repair yards, it is necessary to measure the alignment deviation of the short shaft tube 2 and stern shaft tube 4 during ship repair to determine whether the short shaft tube 2 and stern shaft tube 4 are deformed.

[0003] See Figure 7 The hull bottom 1 is equipped with a short shaft tube 2 and a stern shaft tube 4. The short shaft tube 2 is connected to the hull bottom 1 via a first support structure 3, and the stern shaft tube 4 is connected to the hull bottom 1 via a second support structure 5. During measurement, it is necessary to measure the vertical and horizontal distances between the two ends of the short shaft tube 2 and the two ends of the stern shaft tube 4 and the centerline, which is the centering deviation value. To facilitate on-site measurement, an auxiliary device for measuring the centering deviation value of the shaft tube axis is designed. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for measuring the alignment deviation of the shaft tube axis, which facilitates the on-site measurement of the alignment deviation of the short shaft tube and the stern shaft tube.

[0005] To achieve the above objectives, this utility model provides an auxiliary device for measuring the alignment deviation of a shaft tube axis, including a frame, an adjusting rod, a guide rod, a support rod, and a guide wheel. The adjusting rod and the guide rod are longitudinally mounted on the frame, with the adjusting rod and the guide rod spaced apart by one end and parallel to each other. A first sliding sleeve is movably fitted on the adjusting rod, and the height position of the first sliding sleeve is adjusted by a first adjusting mechanism installed on the adjusting rod. A second sliding sleeve is fitted on the guide rod, and both ends of the support rod are connected to the first and second sliding sleeves, respectively. The guide wheel is movably fitted on the support rod, and an annular groove is provided on the outer circumference of the guide wheel. The left and right positions of the guide wheel are adjusted by a second adjusting mechanism installed on the support rod.

[0006] The first adjusting mechanism includes a first nut, and the outer wall of the adjusting rod is provided with external threads. The first nut is screwed onto the adjusting rod at the lower end of the first sliding sleeve, or the first nut is screwed onto the adjusting rod at the lower and upper sides of the first sliding sleeve respectively.

[0007] The first adjusting mechanism includes a first nut. The outer wall of the adjusting rod is provided with external threads. The first nut is screwed onto the adjusting rod at the lower end of the first sliding sleeve. The adjusting rod has a tubular structure and a first elongated hole extending axially through it. The first elongated hole penetrates the adjusting rod. A first pressure block and a first spring are installed inside the adjusting rod. The two ends of the first pressure block extend out of the first elongated hole. The first pressure block is located at the upper end of the first sliding sleeve. The upper end of the adjusting rod is closed. One end of the first spring abuts against the first pressure block, and the other end abuts against the upper end of the adjusting rod.

[0008] The first pressure block has a T-shaped structure, with its two opposite ends extending out of the first elongated hole and the other end inserted into the first spring.

[0009] The second adjustment mechanism includes a second nut, and the outer wall of the support rod is provided with external threads. The second nuts are screwed onto the support rod on both sides of the guide wheel.

[0010] The second adjusting mechanism includes a second nut, and the outer wall of the support rod is provided with external threads. The second nut is screwed onto the support rod on one side of the guide wheel. The support rod is a tubular structure with a second elongated hole extending axially through it. The second elongated hole penetrates the support rod, and a second pressure block and a second spring are installed inside the support rod. The two ends of the second pressure block extend out of the second elongated hole, and the second pressure block is located on the other side of the guide wheel. One end of the second spring abuts against the second pressure block, and the other end abuts against the first or second sliding sleeve.

[0011] The second pressure block has a T-shaped structure, with its two opposite ends extending out of the second elongated hole and the other end inserted into the second spring.

[0012] Two extension rods are fixedly installed on the top of the frame, and the extension rods are connected to the magnetic base.

[0013] The extension rod is provided with a fixing hole, and the adjustment plate is provided with a third elongated hole extending longitudinally. After the threaded end of the screw passes through the fixing hole and the third elongated hole, a limit nut is screwed on and installed. The end of the adjustment plate away from the frame is connected to the magnetic base.

[0014] Compared with the prior art, this utility model has the following technical effects:

[0015] 1. The frame of this utility model is used for fixed installation on the bottom of the ship. The height position of the first sliding sleeve on the adjusting rod is adjusted by the first adjusting mechanism to adjust the height position of the support rod, thereby adjusting the height position of the guide wheel. The left and right position of the guide wheel on the support rod is adjusted by the second adjusting mechanism. The annular groove of the guide wheel is used to place the steel wire. The above structure facilitates the adjustment of the position of the steel wire, thereby facilitating the on-site measurement of the alignment deviation value of the short shaft tube and the stern shaft tube.

[0016] 2. This utility model, by setting a hinge joint, facilitates the adjustment of the angle of the magnetic base to adapt to the angle of the ship's bottom. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the adjusting rod of this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the support rod of this utility model.

[0022] Figure 5 This is a schematic diagram of the front view of the hinge joint of this utility model.

[0023] Figure 6 This is a right-side structural schematic diagram of the hinge joint of this utility model.

[0024] Figure 7 This is a schematic diagram showing the measurement of the alignment deviation between the short shaft tube and the stern shaft tube.

[0025] Figure label:

[0026] 1. Bottom of the boat, 2. Short shaft tube, 3. First support structure, 4. Stern shaft tube, 5. Second support structure, 6. Center marker plate, 7. Steel wire, 8. Counterweight;

[0027] Frame 10, longitudinal bar 11, lower cross bar 12, upper cross bar 13, extension bar 14, fixing hole 141;

[0028] Adjusting rod 20, first elongated hole 201, first pressure block 202, first spring 203, first sliding sleeve 21, first nut 22;

[0029] Guide rod 30, second sliding sleeve 31;

[0030] Support rod 40, second elongated hole 401, second pressure block 402, second spring 403;

[0031] Guide wheel 50, annular groove 51, second nut 52;

[0032] Adjustment plate 60, third elongated hole 61;

[0033] Magnetic base 70, hinge joint 71, screw 711;

[0034] Screw 80, limit nut 81. Detailed Implementation

[0035] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0036] Example 1:

[0037] See Figure 1 An auxiliary device for measuring the centering deviation of a shaft tube includes a frame 10, an adjusting rod 20, a guide rod 30, a support rod 40, and a guide wheel 50. The adjusting rod 20 and the guide rod 30 are longitudinally mounted on the frame 10. The adjusting rod 20 and the guide rod 30 are spaced apart by one end and are parallel to each other. A first sliding sleeve 21 is movably fitted on the adjusting rod 20. The height position of the first sliding sleeve 21 is adjusted by a first adjusting mechanism installed on the adjusting rod 20. A second sliding sleeve 31 is fitted on the guide rod 30. The two ends of the support rod 40 are respectively connected to the first sliding sleeve 21 and the second sliding sleeve 31. The guide wheel 50 is movably fitted on the support rod 40. An annular groove 51 is provided on the outer circumference of the guide wheel 50. The left and right positions of the guide wheel 50 are adjusted by a second adjusting mechanism installed on the support rod 40.

[0038] The frame 10 is used for fixed installation to the bottom of the ship 1, for example by spot welding. The height position of the first sliding sleeve 21 on the adjusting rod 20 is adjusted by the first adjusting mechanism to adjust the height position of the support rod 40, thereby adjusting the height position of the guide wheel 50; the left and right position of the guide wheel 50 on the support rod 40 is adjusted by the second adjusting mechanism; the annular groove 51 of the guide wheel 50 is used to place the steel wire 7; the above structure facilitates the adjustment of the position of the steel wire 7, thereby facilitating the on-site measurement of the alignment deviation value of the short shaft tube and the stern shaft tube.

[0039] In this embodiment, the first adjusting mechanism includes a first nut 22, and the outer wall of the adjusting rod 20 is provided with external threads. The first nut 22 is screwed onto the lower end of the first sliding sleeve 21 on the adjusting rod 20, or the first nut 22 is screwed onto the lower and upper sides of the first sliding sleeve 21 on the adjusting rod 20 respectively. By rotating and adjusting the position of the two first nuts 22, the height position of the first sliding sleeve 21 is adjusted.

[0040] In this embodiment, the second adjustment mechanism includes a second nut 52. The outer wall of the support rod 40 is provided with external threads, and the second nuts 52 are screwed onto the support rod 40 on both sides of the guide wheel 50. By rotating and adjusting the positions of the two second nuts 52, the left and right positions of the guide wheel 50 can be adjusted.

[0041] In this embodiment, see Figure 2 The frame 10 includes two longitudinal bars 11. A lower crossbar 12 is welded to the lower side of the two longitudinal bars 11, and an upper crossbar 13 is welded to the upper side of the two longitudinal bars 11. The lower crossbar 12 and the upper crossbar 13 are located on the same side. An adjusting rod 20 and a guide rod 30 are welded between the lower crossbar 12 and the upper crossbar 13.

[0042] Example 2:

[0043] The difference from Example 1 is that, see [link to example]. Figure 1 , 3 The first adjusting mechanism includes a first nut 22. The outer wall of the adjusting rod 20 is provided with external threads. The first nut 22 is screwed onto the lower end of the first sliding sleeve 21 on the adjusting rod 20. The adjusting rod 20 has a tubular structure. The adjusting rod 20 is provided with a first elongated hole 201 extending axially. The first elongated hole 201 penetrates the adjusting rod 20. A first pressure block 202 and a first spring 203 are installed inside the adjusting rod 20. The two ends of the first pressure block 202 extend out of the first elongated hole 201 respectively. The first pressure block 202 is located at the upper end of the first sliding sleeve 21. The upper end of the adjusting rod 20 is closed. One end of the first spring 203 abuts against the first pressure block 202, and the other end abuts against the upper end of the adjusting rod 20. With the above structure, the height of the first sliding sleeve 21 can be adjusted simply by rotating the first nut 22. During the adjustment process, the first pressure block 202 is always against the first sliding sleeve 21 by the first spring 203. When the first nut 22 is adjusted upward, the first spring 203 is compressed. When the first nut 22 is adjusted downward, the first spring 203 extends and pushes the first pressure block 202. The first pressure block 202 pushes the first sliding sleeve 21 to prevent the first sliding sleeve 21 from moving downward and getting stuck.

[0044] See Figure 4 The second adjusting mechanism includes a second nut 52. The outer wall of the support rod 40 is provided with external threads. The second nut 52 is screwed onto the support rod 40 on one side of the guide wheel 50. The support rod 40 is a tubular structure with a second elongated hole 401 extending axially through it. The second elongated hole 401 penetrates the support rod 40. A second pressure block 402 and a second spring 403 are installed inside the support rod 40. Both ends of the second pressure block 402 extend out of the second elongated hole 401 and are located on the other side of the guide wheel 50. One end of the second spring 403 abuts against the second pressure block 402, and the other end abuts against either the first sliding sleeve 21 or the second sliding sleeve 31. By rotating the second nut 52, the left and right positions of the guide wheel 50 can be adjusted. During the adjustment process, the second pressure block 402 remains against the guide wheel 50 via the second spring 403. Figure 4 When the second nut 52 is adjusted to the right, the guide wheel 50 moves to the right and the second spring 403 is compressed; when the second nut 52 is adjusted to the left, the second spring 403 pushes the guide wheel 50 to the left through the second pressure block 402.

[0045] Specifically, see Figure 3 The first pressure block 202 has a T-shaped structure, with its two opposite ends extending out of the first elongated hole 201, and the other end inserted into the first spring 203.

[0046] Specifically, see Figure 4 The second pressure block 402 has a T-shaped structure, with its two opposite ends extending out of the second elongated hole 401 and the other end inserted into the second spring 403.

[0047] Example 3:

[0048] Based on Embodiment 1 or Embodiment 2, two extension rods 14 are fixedly installed on the top of the frame 10, and the extension rods 14 are connected to the magnetic base 70. By installing the magnetic base 70 on the top of the extension rods 14, the frame 10 can be easily installed on the bottom of the ship 1 via the magnetic base 70. In this solution, the extension rods 14 are welded to the outer shell of the magnetic base 70.

[0049] Furthermore, the extension rod 14 is provided with a fixing hole 141, and the adjusting plate 60 is provided with a longitudinally extending third elongated hole 61. After the threaded end of the screw 80 passes through the fixing hole 141 and the third elongated hole 61, a limit nut 81 is screwed on. The end of the adjusting plate 60 away from the frame 10 is connected to the magnetic base 70. This structure facilitates the initial adjustment of the height of the frame 10. In this design, the adjusting plate 60 is welded to the outer shell of the magnetic base 70.

[0050] When using, first attach the magnetic base 70 to the bottom of the boat 1, loosen the limit nut 81, make a preliminary adjustment to the height of the frame 10, and then tighten the limit nut 81.

[0051] See Figure 5 , 6 The end of the adjusting plate 60 furthest from the frame 10 is pivotally hinged to a hinge joint 71. A screw 711 is provided on the hinge joint 71, and the screw 711 is screwed into a threaded hole on the magnetic base 70 for fixation. By providing the hinge joint 71, the angle of the magnetic base 70 can be easily adjusted to adapt to the angle of the bottom 1 of the boat.

[0052] Specifically, the hinge joint 71 has a U-shaped structure, and the hinge joint 71 and the adjusting plate 60 are provided with through holes. The pin, as a pivot, passes through the through holes of the hinge joint 71 and the adjusting plate 60, and the pin is limited by a cotter pin.

[0053] It should be noted that the fit between the hinge joint 71 and the adjusting plate 60 is relatively tight, but it should still be able to rotate and adjust to reduce wobbling.

[0054] The method of use or principle of this utility model:

[0055] When measuring, refer to Figure 7 The auxiliary device is fixed to the bottom of the boat 1 by the magnetic base 70. The auxiliary device is located on the left side of the short shaft tube 2. Then, the limit nut 81 is loosened to initially adjust the upper and lower positions of the frame 10 so that the upper side of the guide wheel 50 is approximately located at the center of the short shaft tube 2. Then, the limit nut 81 is tightened.

[0056] A center plate 6 is fixedly installed at the right end of the stern tube 4. One end of a 0.8mm steel wire 7 is fixed to the center point B2 of the center plate 6. For example, a hole can be made at the center point B2, the steel wire 7 is passed through the hole and then knotted, thereby fixing one end of the steel wire 7 to the center plate 6. The center point B2 is also the center of the right end of the stern tube 4. The other end of the steel wire 7 is passed through the stern tube 4 and the short shaft tube 2, and then wrapped around the annular groove 51 on the guide wheel 50. A counterweight 8 is then suspended at the end of the steel wire 7.

[0057] By adjusting the first nut 22 up and down, the height of the steel wire 7 at the center point A1 on the left side of the short shaft tube 2 is adjusted. By adjusting the left and right position of the second nut 52, the left and right positions of the steel wire 7 at the center point A1 on the left side of the short shaft tube 2 are adjusted until the steel wire 7 coincides with the center point A1 on the left side of the short shaft tube 2. At this time, the steel wire 7 coincides with points A1 and B2.

[0058] Then, by measuring the distances R1, R2, R3, and R4 between the steel wire 7 and the center point A2 on the right side of the short shaft tube 2, the deviation values ​​of R1 and R3, and the deviation values ​​of R2 and R4 can be obtained.

[0059] Similarly, measure the distances R5, R7, R6, and R8 from the center point B1 on the left side of the stern tube 4 to the four points on the upper, lower, left, and right sides of the inner diameter of the tube being measured. The deviation values ​​of R5 and R7, and the deviation values ​​of R6 and R8 can be obtained. By comparing whether the differences are within the design specifications, it can be determined whether the short shaft tube 2 and the stern tube 4 are deformed.

Claims

1. An auxiliary device for measuring the alignment deviation of a shaft tube axis, characterized in that: The system includes a frame (10), an adjusting rod (20), a guide rod (30), a support rod (40), and a guide wheel (50). The adjusting rod (20) and the guide rod (30) are longitudinally mounted on the frame (10). The adjusting rod (20) and the guide rod (30) are spaced apart by one end and are parallel to each other. A first sliding sleeve (21) is movably fitted on the adjusting rod (20). The height position of the first sliding sleeve (21) is adjusted by a first adjusting mechanism installed on the adjusting rod (20). A second sliding sleeve (31) is fitted on the guide rod (30). The two ends of the support rod (40) are connected to the first sliding sleeve (21) and the second sliding sleeve (31) respectively. The guide wheel (50) is movably fitted on the support rod (40). An annular groove (51) is provided on the outer circumference of the guide wheel (50). The left and right positions of the guide wheel (50) are adjusted by a second adjusting mechanism installed on the support rod (40).

2. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 1, characterized in that: The first adjustment mechanism includes a first nut (22), and the outer wall of the adjustment rod (20) is provided with an external thread. The first nut (22) is screwed onto the lower end of the first sliding sleeve (21) on the adjustment rod (20), or the first nut (22) is screwed onto the lower and upper sides of the first sliding sleeve (21) on the adjustment rod (20).

3. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 1, characterized in that: The first adjustment mechanism includes a first nut (22), and the outer wall of the adjustment rod (20) is provided with an external thread. The first nut (22) is screwed onto the lower end of the first sliding sleeve (21) on the adjustment rod (20). The adjustment rod (20) is a tubular structure. The adjustment rod (20) is provided with a first elongated hole (201) extending axially. The first elongated hole (201) penetrates the adjustment rod (20). A first pressure block (202) and a first spring (203) are installed inside the adjustment rod (20). The two ends of the first pressure block (202) extend out of the first elongated hole (201) respectively. The first pressure block (202) is located at the upper end of the first sliding sleeve (21). The upper end of the adjustment rod (20) is closed. One end of the first spring (203) abuts against the first pressure block (202), and the other end abuts against the upper end of the adjustment rod (20).

4. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 3, characterized in that: The first pressure block (202) has a T-shaped structure. The two opposite ends of the first pressure block (202) extend out of the first elongated hole (201), and the other end is inserted into the first spring (203).

5. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 1, characterized in that: The second adjustment mechanism includes a second nut (52), and the outer wall of the support rod (40) is provided with an external thread. The second nut (52) is screwed onto the support rod (40) on both sides of the guide wheel (50).

6. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 1, characterized in that: The second adjustment mechanism includes a second nut (52), and the outer wall of the support rod (40) is provided with an external thread. The second nut (52) is screwed onto the support rod (40) on one side of the guide wheel (50). The support rod (40) is a tube structure. The support rod (40) is provided with a second elongated hole (401) extending axially. The second elongated hole (401) passes through the support rod (40). A second pressure block (402) and a second spring (403) are installed inside the support rod (40). The two ends of the second pressure block (402) extend out of the second elongated hole (401). The second pressure block (402) is located on the other side of the guide wheel (50). One end of the second spring (403) abuts against the second pressure block (402), and the other end abuts against the first sliding sleeve (21) or the second sliding sleeve (31).

7. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 6, characterized in that: The second pressure block (402) has a T-shaped structure. The two opposite ends of the second pressure block (402) extend out of the second elongated hole (401), and the other end is inserted into the second spring (403).

8. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 1, characterized in that: Two extension rods (14) are fixedly installed on the top of the frame (10), and the extension rods (14) are connected to the magnetic base (70).

9. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 8, characterized in that: The extension rod (14) is provided with a fixing hole (141), and the adjustment plate (60) is provided with a longitudinally extending third long hole (61). After the threaded end of the screw (80) passes through the fixing hole (141) and the third long hole (61), a limit nut (81) is screwed on and installed. The end of the adjustment plate (60) away from the frame (10) is connected to the magnetic base (70).

10. The auxiliary device for measuring the alignment deviation of the shaft tube axis according to claim 9, characterized in that: The end of the adjusting plate (60) away from the frame (10) is pivotally connected to a hinge joint (71), and a screw (711) is provided on the hinge joint (71). The screw (711) is screwed and fixed to the threaded hole on the magnetic base (70).

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