Motor support replacement tool for marine small crane test

Abstract

The utility model discloses a motor support replacement tool for a marine small crane test, which comprises a test bed hamper, a middle box transition section and a tower body, the middle box transition section is arranged on the test bed hamper, the tower body is arranged on the middle box transition section, and an adjustable motor mounting frame is arranged in the middle box transition section; the motor mounting frame comprises a transition plate fixedly arranged in the transition section of the middle box, a motor connecting plate is arranged on the transition plate, and the motor mounting frame is used for adjusting and fixing the transverse or longitudinal position of the motor body. According to the utility model, the transition section of the middle box is temporarily mounted and matched with the slewing bearing on the tower body to debug the equipment, so that the cutting and grinding of the tower body of the crane caused by cutting are avoided. In an out-field function test of a manufacturer, a middle box transition section is used for replacing a foundation pillar out-field test, and because a motor is designed to be fixed on a bracket in the foundation pillar, a part of brackets are required to be mounted in the middle box transition section to replace the motor bracket in the foundation pillar to fix the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a motor bracket for replacing tooling for a small ship crane test. Background Art

[0002] According to the applicant, with the recent development of the shipbuilding industry and increasing user demand for deck cranes, product research and development and innovation have become important drivers of corporate development. To ensure that product quality and performance meet expectations, products must undergo partial functional testing at the manufacturer before they are shipped to users for use. This allows companies to understand key indicators such as product performance, reliability, and safety, thereby optimizing product design and manufacturing processes to enhance product competitiveness. Companies must reduce costs and improve efficiency in the market to gain price and quality advantages, achieve greater market returns, and achieve sustainable development.

[0003] Before leaving the factory, marine cranes need to undergo some functional tests on an outdoor test bench to verify the firmness of the connections between the various components of the crane, check whether there is interference between the various moving parts, and whether parameters such as the movement speed after the load test meet the design requirements.

[0004] Because the lower portion of the base column of the connection between the lower portion of our marine crane and the deck or deck-mounted base is largely welded, we designed an upper and lower flange transition section to replace the base column when the crane is moved to the test bed bunker for functional testing. To save space, the main power motor is installed within the base column during the crane steel structure design. When the crane is tested in the field, it is necessary to consider installing some brackets within the intermediate box transition section to secure the motor during the crane test.

[0005] If we copy the motor bracket designed for the product and fix it in the transition section of the middle box when we are in the field, it will increase the design and manufacturing costs, and it can only be used for special purposes and cannot meet the field tests of various types of small cranes. This requires us to design a variety of motor brackets according to different types of small cranes, which cannot improve efficiency and reduce costs.

[0006] In view of the above, it is necessary to propose a motor bracket for marine small crane testing to replace the tooling to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to overcome the defects in the prior art and provide a motor bracket for testing a small marine crane to replace the tooling.

[0008] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a motor bracket for testing a small ship crane is used to replace the tooling, comprising a test bench bunker, an intermediate box transition section, and a tower body. The intermediate box transition section is installed on the test bench bunker, and the tower body is arranged on the intermediate box transition section. An adjustable motor mounting bracket is provided in the intermediate box transition section; the motor mounting bracket includes a transition plate fixedly arranged in the intermediate box transition section, and a motor connecting plate is installed on the transition plate. The motor mounting bracket is used to adjust and fix the horizontal or vertical position of the motor body.

[0009] Furthermore, the test bench bunker includes a cylindrical tube and a bunker flange, and the top of the cylindrical tube is provided with a bunker flange; the intermediate box transition section includes a circular tube section, a lower flange, and an upper flange, and the diameter of the circular tube section matches the diameter of the cylindrical tube, and the lower side of the circular tube section is provided with a lower flange and the upper side is provided with an upper flange; the bottom of the tower body is provided with a slewing bearing, and the upper flange is connected to the flange of the slewing bearing.

[0010] Furthermore, the transition plate includes at least two symmetrically arranged fixed ear plates, which are welded and fixed to the inner wall of the cylindrical tube, and are provided with multiple first mounting holes; the motor mounting frame also includes a motor connecting plate, which is I-shaped and includes a motor mounting area and side ear plates protruding to both sides, and the side ear plates are installed on the fixed ear plates, and are provided with second mounting holes corresponding to the first mounting holes; the motor body is fixed on the motor connecting plate, and the motor connecting plate is provided with a plurality of wide-spaced motor mounting waist holes arranged longitudinally.

[0011] Furthermore, at least one side of the fixed ear plate is a welding edge, and a supporting back plate is provided between the back of the fixed ear plate and the inner curved inner wall of the cylindrical tube.

[0012] Furthermore, the transition plate is in the shape of a long strip, and its two ends are fixedly welded in the cylindrical tube. One side surface of the transition plate is in the shape of a rack and is provided with a first tooth surface. The transition plate is provided with two parallel teeth in the cylindrical tube. A motor connecting plate is installed on the transition plate. The back of the motor connecting plate is provided with a second tooth surface meshing with the first tooth surface. The motor connecting plate limits the lateral distance of its installation on the transition plate by the meshing of the two tooth surfaces, and also includes a bolt locking member for locking the motor connecting plate to the transition plate.

[0013] Furthermore, the motor connecting plate includes a motor mounting portion, which is arranged longitudinally on the surface of the motor connecting plate, and height limiting side edges are provided on both sides of the motor mounting portion. The thickness of the height limiting side edges is greater than the thickness of the motor mounting portion, so that the motor mounting portion forms a relatively concave surface on the surface of the motor connecting plate, and a plurality of motor mounting waist holes are distributed on the motor mounting portion.

[0014] Furthermore, a height limiting beam is provided in the concave surface of the motor mounting portion, a third tooth surface is provided on both sides of the height limiting beam, a fourth tooth surface is provided on the side where the height limiting sides are close to each other, and the third tooth surface is meshed with the fourth tooth surface.

[0015] Furthermore, the height limiting crossbeam is provided with a transverse waist hole arranged in the transverse direction, and a locking bolt is provided through the motor mounting waist hole, the transverse waist hole and the motor body.

[0016] Furthermore, a universal coupling is provided at the output end of the motor body, and the other end of the universal coupling is connected to the rotating end on the bottom plate of the tower body.

[0017] The advantages and beneficial effects of the present invention are as follows: since the lower part of the base column design of most small ship cranes is welded so as to be welded to the deck or base on the ship, if the base column is welded to the bunker according to the design and welding requirements and then tested, it will affect the flatness of the flange surface on the upper part of the base column, and subsequent grinding and other processes are required, which greatly increases the manufacturing cost. In the present invention, the temporary installation of the intermediate box transition section and the slewing bearing on the tower body are used to debug the equipment. After the test is completed, it can be completely dismantled, thereby avoiding cutting and grinding of the crane tower body. During the field functional test at the manufacturer, an intermediate box transition section will be used to replace the base column field test. Since the motor is designed to be fixed on the bracket inside the base column, this requires us to install some brackets inside the intermediate box transition to replace the motor bracket inside the base column to fix the motor. This design is a motor connection plate designed based on this requirement.

[0018] Because different types of marine cranes require different motor models, creating a dedicated motor connection plate for each motor model would significantly increase manufacturing costs. Considering design, manufacturing, and lead time, we designed the motor connection plate with a large center area to facilitate drilling multiple rows of holes to accommodate different motor models. We also appropriately thickened the plate and, leveraging the universal joint (which allows for expansion and contraction), milled waist-shaped holes upward or downward on top of the original holes to facilitate the installation and fixation of similar motor models. This maximizes space, saves manpower and material resources, improves efficiency, reduces storage space, and saves time and effort. We also fully utilized the space between the intermediate box transition section and the bunker, designing the motor bracket to be relatively long to allow for reversible installation and fixation, thus maximizing the space available on the motor connection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a motor bracket for a small marine crane test replacing a tooling device in the utility model;

[0020] Figure 2 This is a schematic diagram of the connection of the motor in the present utility model;

[0021] Figure 3 This is an axonometric view of the first embodiment of the present utility model;

[0022] Figure 4 This is an exploded view of the first embodiment of the present utility model;

[0023] Figure 5 This is an axonometric view of the second embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the installation of the motor in the second embodiment of the present utility model;

[0025] Figure 7 This is one of the exploded views of the second embodiment of the present utility model;

[0026] Figure 8 This is the second exploded view of the second embodiment of the present utility model;

[0027] In the figure: 1. Test bench bunker; 2. Intermediate box transition section; 3. Tower body; 4. Motor mounting frame; 5. Transition plate; 6. Motor body; 7. Motor connecting plate; 8. Cylindrical tube; 9. Bunker flange; 10. Circular pipe section; 11. Lower flange; 12. Upper flange; 13. Slewing bearing; 14. Fixed ear plate; 15. First mounting hole; 16. Motor mounting area; 17. Side ear plate; 18. Second mounting hole; 19. Motor mounting waist hole; 20. Welding edge; 21. Support back plate; 22. First tooth surface; 23. Second tooth surface; 25. Motor mounting part; 26. Height limit side; 27. Height limit beam; 28. Third tooth surface; 29. ​​Fourth tooth surface; 30. Horizontal waist hole; 32. Universal joint; 33. Tower bottom plate; 34. Rotating end. DETAILED DESCRIPTION

[0028] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] Example 1:

[0030] A motor bracket for testing a small marine crane is used instead of a tooling, such as Figure 1-4As shown, it includes a test bench bunker 1, an intermediate box transition section 2, and a tower body 3. The intermediate box transition section 2 is installed on the test bench bunker 1, and the tower body 3 is set on the intermediate box transition section 2. An adjustable motor mounting bracket 4 is provided in the intermediate box transition section 2; the test bench bunker 1 is a mounting base structure of various models prefabricated on an outdoor test bench, and the test bench bunker 1 includes a cylindrical tube 8 and a bunker flange 9, and the top of the cylindrical tube 8 is provided with a bunker flange 9; the cylindrical tube 8 is prefabricated at the outdoor test site, and the cylindrical tube 8 cooperates with the base of the crane being tested, and a bunker flange 9 for installation is provided on the top of the cylindrical tube 8.

[0031] Furthermore, the intermediate box transition section 2 includes a circular tube section 10, a lower flange 11, and an upper flange 12. The diameter of the circular tube section 10 matches the diameter of the cylindrical barrel 8. The lower side of the circular tube section 10 is provided with a lower flange 11, and the upper side is provided with an upper flange 12. Figure 1 As shown, the lower flange 11 is mounted on the bunker flange 9, while the upper flange 12 is used to mount the crane under test. A slewing bearing 13 is provided at the bottom of the tower body 3, and the upper flange 12 is connected to the flange of the slewing bearing 13. Because the device is connected to the crane under test via a flange connection, it can be easily removed and fixed. After the test is completed, the crane can be removed by removing the upper flange 12 without cutting or grinding, thus effectively maintaining the crane's integrity.

[0032] The motor mounting frame 4 includes a transition plate 5 fixedly arranged in the intermediate box transition section 2, and a motor connecting plate 7 is installed on the transition plate 5. The motor mounting frame 4 is used to adjust and fix the horizontal or vertical position of the motor body 6. Specifically, Figure 1 、 3 As shown, the transition plate 5 includes at least two symmetrically arranged fixed ear plates 14, the fixed ear plates 14 are welded and fixed to the inner wall of the cylindrical tube 8, and a plurality of first mounting holes 15 are provided on the fixed ear plates 14; the motor mounting frame 4 also includes a motor connecting plate 7, the motor connecting plate 7 is I-shaped and includes a motor mounting area 16 and side ear plates 17 protruding to both sides, the side ear plates 17 are installed on the fixed ear plates 14, and the side ear plates 17 are provided with second mounting holes 18 corresponding to the first mounting holes 15; when installing, the side ear plates 17 are Corresponding to the position of the fixed ear plate 14, a bolt is then passed through the first mounting hole 15 and the second mounting hole 18 and tightened, thereby firmly mounting the motor connecting plate 7 on the fixed ear plate; it can be understood that in this embodiment, only the upper fixing ear plate 14 is provided. In specific implementation, a lower fixing ear plate 14 can also be added to fix the lower side ear plate 17; in actual use, multiple first mounting holes 15 can be provided horizontally to facilitate the adjustment of the horizontal position of the motor mounting plate to accommodate the installation of various models of motors;

[0033] Furthermore, the motor body 6 is fixed on the motor connecting plate 7, and the motor connecting plate 7 is provided with a plurality of motor mounting waist holes 19 arranged longitudinally and with a wide spacing. Figure 4 As shown, the mounting holes are arranged in pairs on both sides, so as to adapt to the four fixing bolt positions of motors of different models. When inserting the fixing bolts, since the length direction of the mounting holes is arranged along the longitudinal direction, the position of the motor can be adjusted in the height direction to adapt to the installation and fixation of motor bodies 6 of different lengths and sizes.

[0034] Furthermore, at least one side of the fixed ear plate 14 is a welding edge 20. In order to strengthen the strength of the fixed ear plate 14, a supporting back plate 21 is provided between the back of the fixed ear plate 14 and the inner arc-shaped inner wall of the cylindrical tube 8; Figure 4 As shown, the support back plate 21 can increase the contact area between the fixed ear plate 14 and the circular tube section 10, and is perpendicular to the fixing direction of the longitudinal welding edge 20, effectively increasing the strength of the fixed ear plate 14. Figure 2 As shown, a universal coupling 32 is provided at the output end of the motor body 6 , and the other end of the universal coupling 32 is connected to a rotating end 34 on the bottom plate of the tower body 3 .

[0035] The motor mounting bracket 4 for testing a small marine crane in this design primarily consists of a transition plate 5, a motor connecting plate 7, and connecting bolts and gaskets. The transition plate 5 is welded to the lower portion of the upper flange 12 of the intermediate housing transition section 2 during the design. This prevents the flange flatness of the intermediate housing 2 from being affected by welding the transition plate 5 after machining. The motor connecting plate 7 is fabricated separately and connected to the transition plate 5 using bolts and gaskets. Various mounting holes or milled-waist holes are drilled into this motor connecting plate 7 to facilitate field testing of different small crane models, reducing design and manufacturing costs.

[0036] The specific operation process is as follows:

[0037] 1. After the installation of the ship crane tower body 3 and the boom is completed, the tower body 3 and the boom are transported to an appropriate location outside.

[0038] 2. Remove the protective cover on the test bench bunker 1 and put the protective cover in the appropriate position.

[0039] 3. Select the appropriate intermediate box transition section 2 and test bolts and gaskets according to the 9 holes of the bunker flange and the center line of the 9 holes of the bunker flange (or select the appropriate intermediate box transition section 2 for drilling).

[0040] 4. Clean the upper flange 12 of the bunker and the upper and lower flanges 11 of the intermediate box transition section 2.

[0041] 5. Lift the intermediate box transition section 2 to the upper part of the test bench bunker 1, and connect the intermediate box transition section 2 to the bunker with bolts, gaskets, etc.

[0042] 6. Lift the tower body 3 to a suitable position above the intermediate box transition section 2, and after proper adjustment, connect the tower body 3 and the upper flange 12 of the intermediate box transition section 2 with bolts, gaskets, etc.

[0043] 7. Select an appropriate motor connecting plate 7, and provide a manhole on the round pipe section 10 for easy access for installation (or punch a hole on the motor connecting plate 7, or mill a waist-shaped hole, etc. to facilitate motor installation).

[0044] 8. Connect the motor body 6 and other components to the bottom plate of the tower body 3 through the universal coupling 32, and connect them to the motor connecting plate 7 through bolts.

[0045] 9. Connect the arm to the tower body 3.

[0046] 10. Carry out functional tests on small marine cranes according to the designer’s test outline.

[0047] 11. After the test, remove the boom, tower body 3, intermediate box transition section 2, etc.

[0048] 10. Ending.

[0049] Example 2:

[0050] like Figure 5-8 As shown, the transition plate 5 is in the shape of a long strip, and its two ends are fixedly welded in the cylindrical tube 8. Compared with the transition plate 5 of the short plate structure installed on both sides in the first embodiment, the transition plate 5 in this embodiment is more integrated and more solid, and can be used as a track for the lateral adjustment position of the motor; further, a first tooth surface 22 is provided in the shape of a rack on one side surface of the transition plate 5 to form a rack-like structure. The transition plate 5 is provided with two parallel teeth in the cylindrical tube 8. A motor connecting plate 7 is installed on the transition plate 5. The back of the motor connecting plate 7 is provided with a second tooth surface 23 meshing with the first tooth surface 22, as shown in FIG. Figure 7 As shown, when the motor connecting plate 7 is installed, the two second tooth surfaces 23 on the back thereof can be engaged with the first tooth surfaces 22 of the two transition plates 5. Once the engagement is formed, the motor is firmly positioned in the lateral direction to prevent lateral slippage caused by the vibration of the motor during operation. The motor connecting plate 7 is limited in its lateral installation distance on the transition plate 5 by the engagement of the two tooth surfaces, and also includes a bolt locking member for locking the motor connecting plate 7 on the transition plate 5. Specifically, as shown in FIG. Figure 6 、 7 As shown, a transverse waist hole is provided on the transition plate 5, and a through hole is provided on the motor connecting plate 7 at a position corresponding to its height. Bolts are passed through the transverse waist hole and the motor mounting plate and tightened to fix them.

[0051] Furthermore, the motor connecting plate 7 includes a motor mounting portion 25, which is arranged longitudinally on the surface of the motor connecting plate 7. Height limiting side edges 26 are provided on both sides of the motor mounting portion 25. The thickness of the height limiting side edges 26 is greater than the thickness of the motor mounting portion 25, so that the motor mounting portion 25 forms a relatively concave surface on the surface of the motor connecting plate 7. A plurality of motor mounting waist holes 19 are distributed on the motor mounting portion 25. Figure 8 As shown, the motor mounting portion 25 is provided with multiple motor mounting waist holes 19 with preset widths and apertures according to different motor models. Therefore, when the motor changes its horizontal mounting position, it is sufficient to insert the bolt into the corresponding motor mounting waist hole 19. The motor mounting waist hole 19 limits the horizontal position of the motor relative to the motor connecting plate 7, but it still has the risk of slipping in the longitudinal position. As an improvement, a height limiting crossbeam 27 is provided in the concave surface of the motor mounting portion 25. The height limiting crossbeam 27 has third tooth surfaces 28 on both sides, and the height limiting side edges 26 are provided with fourth tooth surfaces 29 on the side close to each other. The third tooth surfaces 28 are meshed with the fourth tooth surfaces 29. During installation, the two ends of the height limiting beam are inserted into the third tooth surface 28 through the fourth tooth surface 29, so that the height position can be limited. In addition, the height limiting crossbeam 27 is provided with transverse waist holes 30 arranged along the transverse direction, and locking bolts are provided through the motor mounting waist holes 19, the transverse waist holes 30 and the motor body 6. Therefore, in this embodiment, the lateral position and longitudinal position of the motor installation can be conveniently adjusted, and both are fixed by tooth engagement to avoid vibration and displacement during operation of the motor.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A motor bracket for testing a small marine crane to replace the tooling, characterized in that: The invention comprises a test bench bunker (1), an intermediate box transition section (2), and a tower body (3). The intermediate box transition section (2) is installed on the test bench bunker (1), the tower body (3) is installed on the intermediate box transition section (2), and an adjustable motor mounting frame (4) is provided in the intermediate box transition section (2); the motor mounting frame (4) comprises a transition plate (5) fixedly arranged in the intermediate box transition section (2), a motor connecting plate (7) is installed on the transition plate (5), and the motor mounting frame (4) is used to adjust and fix the horizontal or vertical position of the motor body (6).

2. A motor bracket for replacing tooling for a small marine crane test according to claim 1, characterized in that: The test bench bunker (1) includes a cylindrical tube (8) and a bunker flange (9), wherein the top of the cylindrical tube (8) is provided with a bunker flange (9); the intermediate box transition section (2) includes a circular tube section (10), a lower flange (11), and an upper flange (12), wherein the diameter of the circular tube section (10) matches the diameter of the cylindrical tube (8), the lower side of the circular tube section (10) is provided with a lower flange (11), and the upper side is provided with an upper flange (12); the bottom of the tower body (3) is provided with a slewing bearing (13), and the upper flange (12) is connected to the flange of the slewing bearing (13).

3. A motor bracket for replacing tooling for a small marine crane test according to claim 2, characterized in that: The transition plate (5) includes at least two symmetrically arranged fixed ear plates (14), the fixed ear plates (14) are welded and fixed to the inner wall of the cylindrical tube (8), and a plurality of first mounting holes (15) are provided on the fixed ear plates (14); the motor connecting plate (7) is in an I-shape and includes a motor mounting area (16) and side ear plates (17) protruding to both sides, the side ear plates (17) are mounted on the fixed ear plates (14), and the side ear plates (17) are provided with second mounting holes (18) corresponding to the first mounting holes (15); the motor body (6) is fixed on the motor connecting plate (7), and the motor connecting plate (7) is provided with a plurality of motor mounting waist holes (19) arranged longitudinally and having a wide spacing.

4. A motor bracket for replacing a tool for testing a small marine crane according to claim 3, characterized in that: At least one side of the fixed ear plate (14) is a welding edge (20), and a supporting back plate (21) is provided between the back of the fixed ear plate (14) and the inner arc-shaped inner wall of the cylindrical tube (8).

5. The motor bracket for replacing the tooling for a small marine crane test according to claim 1 is characterized in that: The transition plate (5) is in the shape of a long strip, and its two ends are fixedly welded in the cylindrical tube (8). One side surface of the transition plate (5) is in the shape of a rack and is provided with a first tooth surface (22). The transition plate (5) is provided with two parallel teeth in the cylindrical tube (8). A motor connecting plate (7) is installed on the transition plate (5). The back of the motor connecting plate (7) is provided with a second tooth surface (23) meshing with the first tooth surface (22). The motor connecting plate (7) is limited in its lateral distance installed on the transition plate (5) by the meshing of the two tooth surfaces, and also includes a bolt locking member for locking the motor connecting plate (7) on the transition plate (5).

6. A motor bracket for replacing tooling for a small marine crane test according to claim 5, characterized in that: The motor connecting plate (7) includes a motor mounting portion (25), which is arranged longitudinally on the surface of the motor connecting plate (7), and height limiting side edges (26) are provided on both sides of the motor mounting portion (25). The thickness of the height limiting side edges (26) is greater than the thickness of the motor mounting portion (25), so that the motor mounting portion (25) forms a relatively concave surface on the surface of the motor connecting plate (7), and a plurality of motor mounting waist holes (19) are distributed on the motor mounting portion (25).

7. A motor bracket for replacing tooling for a small marine crane test according to claim 6, characterized in that: A height limiting beam (27) is provided in the concave surface of the motor mounting portion (25), third tooth surfaces (28) are provided on both sides of the height limiting beam (27), and a fourth tooth surface (29) is provided on the side where the height limiting side edges (26) are close to each other, and the third tooth surface (28) is meshed with the fourth tooth surface (29).

8. The motor bracket for replacing the tooling for a small marine crane test according to claim 7 is characterized in that: The height limiting crossbeam (27) is provided with a transverse waist hole (30) arranged in the transverse direction, and a locking bolt is provided through the motor mounting waist hole (19), the transverse waist hole (30) and the motor body (6).

9. A motor bracket for replacing tooling for a small marine crane test according to claim 4 or 8, characterized in that: The output end of the motor body (6) is provided with a universal coupling (32), and the other end of the universal coupling (32) is connected to the rotating end (34) on the bottom plate of the tower body (3).

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