A rotary water polisher for hub polishing

By designing a multi-arm structure and circulating water system for a rotary water polisher, the problem of low automation in existing wheel hub water polishers has been solved, enabling efficient and uniform polishing of various wheel hub models, and improving production efficiency and equipment versatility.

CN120791620BActive Publication Date: 2026-02-24HUAQING GRINDING TECH (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202511226701.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-02-24
Estimated Expiration
2045-08-29

AI Technical Summary

Technical Problem

Existing wheel hub water polishing machines have a simple structure, low automation, low efficiency, and cannot process multiple wheel hub models at the same time, resulting in serious resource waste and low surface treatment precision.

Method used

Design a rotary water polishing machine, including a multi-arm structure and a circulating water system, to achieve synchronous or independent polishing of multiple hubs through columns, a rotating spindle and a chuck. Equipped with a PLC control system and touch screen operation, it supports multi-level control and fault alarms, and has a high degree of automation.

Benefits of technology

It achieves efficient and uniform polishing of multiple wheel models, reduces resource waste, improves production cycle and equipment versatility, reduces reliance on manual labor, and is suitable for use in modern factories.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of hub polishing, and particularly discloses a rotary water polishing machine for hub polishing, which solves the problems of single structure, low automation degree, low efficiency, serious material waste, low surface treatment precision and poor universality of most existing water polishing machines, and provides the following scheme, which comprises a chassis, a rotary support square channel, a barrel bottom plate, a barrel, an outer barrel, an inner barrel, a barrel cover, a water collecting disc, a water guide hole, a driving motor one, a stand column rotary motor, a stand column, a protective cover, a rotary main shaft, a driving motor two, a chuck, a long strip chuck claw, a plastic clamping block and a hub. A cylinder is rotationally connected to the stand column, an output end of the cylinder is connected with an adjusting rod, and the upper end of the adjusting rod is rotationally connected with the protective cover. The device can automatically and efficiently polish different models of hubs with high precision, the processing is efficient, the water polishing effect is good, the quality is uniform, manual work is replaced, and the device is more environmentally friendly and energy-saving.
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Description

Technical Field

[0001] This invention relates to the field of wheel hub polishing, and in particular to a rotary water polisher for wheel hub polishing. Background Technology

[0002] With the rapid development of the automotive industry, aluminum alloy wheels are widely used due to their advantages such as lightweight, aesthetics, and high strength. To improve the surface finish and texture of the wheels, a water polishing machine is usually used to perform water polishing treatment.

[0003] The specific processing principle of a water polishing machine is as follows: Abrasive media such as grinding stones and abrasive sand are mixed with a special chemical polishing fluid and water to form a wet polishing medium. During operation, the polishing media in the fluid move at high speed through stirring, rotation, or spraying, continuously impacting and rubbing the surface of the wheel hub, thereby removing burrs, oxide layers, scratches, and other imperfections to achieve a polishing effect. The wet polishing fluid plays several auxiliary roles in a water polishing machine. On one hand, water acts as a carrier for the polishing media, allowing it to be evenly distributed on the wheel hub surface, ensuring uniform polishing. On the other hand, the water flow can carry away debris and heat generated during polishing, preventing debris accumulation from affecting the polishing effect and also preventing the wheel hub from deforming or being damaged due to overheating. Furthermore, water also acts as a lubricant, reducing the friction between the polishing media and the wheel hub surface, thus reducing wear.

[0004] A water polishing machine includes components such as a polishing slurry storage tank, a circulation pump, pipes, and nozzles. The polishing slurry storage tank stores the polishing slurry. The circulation pump draws the polishing slurry from the storage tank, delivers it to the nozzle through the pipes, and then sprays the polishing slurry evenly onto the surface of the wheel hub. After polishing, the polishing slurry returns to the storage tank through the return pipe, achieving recycling.

[0005] However, most existing wheel hub water polishing machines suffer from problems such as simple structure, low automation, low efficiency, serious material waste, and low surface treatment precision, making it difficult to meet the batch processing needs of different wheel hub models. Furthermore, existing wheel hub water polishing machines are generally set up with a single processing fixture, allowing only a single wheel hub to be water polished, and cannot simultaneously process multiple wheel hubs of different models to improve versatility and processing efficiency. Therefore, a rotary water polishing machine for wheel hub polishing is proposed. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention proposes a rotary water polishing machine for wheel hub polishing, which can perform batch, high-precision, and high-efficiency water polishing of various wheel hub models with high automation, thereby improving the efficiency of water polishing of wheel hubs.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0008] A rotary water polisher for wheel hub polishing includes a chassis, a slewing bearing square tube mounted on the chassis, a cylindrical bottom plate rotatably mounted on the slewing bearing square tube, and a cylindrical barrel mounted on the cylindrical bottom plate. An outer barrel fitted around the outside of the cylindrical barrel is also connected to the chassis. An inner barrel is installed at the bottom of the cylindrical barrel, and a barrel cover is installed at the top of the inner barrel. A water receiving tray is also mounted on the chassis below the cylindrical barrel. A water guide hole corresponding to the water receiving tray is opened at the bottom of the cylindrical barrel. A drive motor for driving the cylindrical barrel to rotate is mounted on one side of the chassis. Multiple column rotary motors are arrayed on the outer side of the chassis, and columns are installed at the top of the column rotary motors.

[0009] A protective cover is rotatably mounted on the upper end of the column. A rotating spindle is rotatably mounted inside the protective cover. A second drive motor for driving the rotating spindle is installed inside the protective cover. A chuck is mounted on the end of the rotating spindle away from the protective cover. Multiple long jaws are arrayed on the chuck, and plastic clips are mounted on the long jaws. Wheel hubs are clamped between the long jaws on the same chuck through the plastic clips. A cylinder is rotatably connected to the column. An adjusting rod is connected to the output end of the cylinder, and the upper end of the adjusting rod is rotatably connected to the protective cover.

[0010] The chuck has multiple slots arranged in an array. The elongated claw is slidably connected to the slot. The elongated claw has a bolt hole 1, and a bolt 1 is installed in the bolt hole 1. The elongated claw is connected to the inner wall of the slot through the bolt 1. A sliding groove is formed through the elongated claw. The plastic block has a bolt hole 3, and a bolt 3 is installed in the bolt hole 3. The plastic block is connected to a plastic card holder through the bolt 3. The plastic card holder has a bolt hole 2, and a bolt 2 is installed in the bolt hole 2. The plastic card holder is installed on the elongated claw through the bolt 2, and the bolt 2 slides through the sliding groove.

[0011] Preferably, a chassis slewing bearing is installed on the slewing bearing square tube, the bottom plate of the cylinder is installed on the chassis slewing bearing, a side seat is installed on one side of the chassis, a drive motor is installed on the side seat, the output end of the drive motor is fitted to the bottom of the cylinder via a belt or sprocket, and the output end of the drive motor is also fitted to the rotating main shaft via a belt or sprocket.

[0012] Preferably, the upper end of the outer barrel is also connected to a baffle ring, and the baffle ring has multiple openings in an array corresponding to the rotating main shaft, and the rotating main shaft is rotatably disposed in the openings.

[0013] Preferably, the outer side of the chassis is arrayed with multiple mounting bases, the column rotary motor is mounted on the mounting bases, the lower end of the protective cover is connected to a pin, the upper end of the column is mounted with an upper end plate, and the protective cover is rotatably mounted on the upper end plate of the column via the pin.

[0014] Preferably, an mounting plate is installed on the lower outer side of the column, a first pin seat is installed on the mounting plate, a second pin is connected to the lower end of the cylinder, the second pin is rotatably connected to the first pin seat, a third pin is connected to the upper end of the adjusting rod, a second pin seat is installed on the lower end of the protective cover near the outer barrel, and the third pin is rotatably connected inside the second pin seat.

[0015] Preferably, a small electrical box is provided on one side of each column, and the small electrical box is used to control the column rotation motor, drive motor II, and cylinder operation on the corresponding column.

[0016] Preferably, a main electrical box is also provided on one side of the chassis, which is used to control the operation of each small electrical box and drive motor.

[0017] The beneficial effects of this invention are:

[0018] 1. The technical solution of the present invention is to open a water guide hole at the bottom of the barrel and set a water receiving plate corresponding to the water guide hole at the bottom of the barrel, so as to realize the recycling and reuse of water in the barrel and reduce resource waste.

[0019] 2. The technical solution of the present invention has multiple columns, rotating spindles and chucks arranged in an array on the outside of the chassis. Compared with traditional polishing machines or manual polishing devices, the polishing cycle is significantly shortened, and multiple arms can operate synchronously or independently, greatly improving the production cycle.

[0020] 3. The technical solution of the present invention allows for position adjustment on the long jaws via plastic blocks, enabling the chuck to adapt to and mount wheel hubs of different sizes, thereby improving equipment versatility and reducing the frequency of tooling changes.

[0021] 4. The technical solution of the present invention, by combining a rotating spindle, enables the chuck to rotate 360°, and polishes the wheel hub, which is held in place by long strip claws and plastic blocks, without dead angles. The rotation process results in a wide polishing coverage and a more consistent and uniform polishing effect.

[0022] 5. The technical solution of the present invention enables individual control of the robotic arm composed of each column, rotating spindle and chuck by setting up a small electrical box, and can also perform comprehensive control of the equipment through the main electrical box, realizing the configuration of a multi-level PLC control system with functions such as parameter preset, mode switching and fault alarm; it supports touch screen operation and programmed control, reduces reliance on manual technology and facilitates automation integration. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the relevant structures on the chassis and mounting base of the present invention;

[0025] Figure 3 This is a schematic diagram of the relevant structures on the outer barrel of the present invention;

[0026] Figure 4 This is a schematic diagram of the relevant structures on the inner barrel of the present invention;

[0027] Figure 5 This is a cross-sectional view of the relevant structure on the inner barrel of the present invention;

[0028] Figure 6 This is a schematic diagram of the relevant structures on the column of the present invention;

[0029] Figure 7 This is a side view of the relevant structures on the column of the present invention;

[0030] Figure 8 This is a schematic diagram of the relevant structures on the chuck of the present invention;

[0031] Figure 9 This is a side view of the relevant structures on the chuck of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Chassis; 2. Slewing bearing square tube; 3. Chassis slewing bearing; 4. Cylinder bottom plate; 5. Outer barrel; 6. Cylinder; 7. Inner barrel; 8. Cylinder lid; 9. Water receiving tray; 10. Water guide hole; 11. Material retaining ring; 12. Side seat; 13. Drive motor one; 14. Mounting base; 15. Column slewing motor; 16. Column; 17. Protective cover; 18. Rotary spindle; 19. Drive motor two; 20. 21. Chuck; 22. Slot; 23. Long clip; 24. Plastic holder; 25. Plastic block; 26. Bolt hole one; 27. Slide; 28. Bolt hole two; 29. ​​Bolt hole three; 30. Mounting plate; 31. Pin seat one; 32. Cylinder; 33. Pin two; 34. Adjusting rod; 35. Pin three; 36. Pin seat two; 37. Hub; 38. Small electrical box; 39. Main electrical box. Detailed Implementation

[0034] The following will be combined with the appendix Figure 1 To be continued Figure 9The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] like Figure 1-9 As shown, the present invention discloses a rotary water polishing machine for wheel hub polishing, including a chassis 1, a slewing bearing square tube 2 mounted on the chassis 1, a cylindrical bottom plate 4 rotatably mounted on the slewing bearing square tube 2, and a cylindrical barrel 6 mounted on the cylindrical bottom plate 4. An outer barrel 5 fitted around the outside of the cylindrical barrel 6 is also connected to the chassis 1. An inner barrel 7 is mounted at the bottom of the cylindrical barrel 6, and a barrel cover 8 is mounted at the upper end of the inner barrel 7. A water receiving tray 9 is also mounted on the chassis 1 below the cylindrical barrel 6. A water guide hole 10 corresponding to the water receiving tray 9 is opened at the bottom of the cylindrical barrel 6. A drive motor 13 for driving the cylindrical barrel 6 to rotate is mounted on one side of the chassis 1. Multiple column rotary motors 15 are arrayed on the outer side of the chassis 1, and a column 16 is mounted at the upper end of the column rotary motor 15.

[0037] A protective cover 17 is rotatably mounted on the upper end of the column 16. A rotating spindle 18 is rotatably mounted inside the protective cover 17. A drive motor 19 for driving the rotating spindle 18 is installed inside the protective cover 17. A chuck 20 is mounted on the end of the rotating spindle 18 away from the protective cover 17. Multiple long strip claws 22 are arrayed on the chuck 20, and plastic clips 24 are mounted on the long strip claws 22. Hubs 36 are clamped between the long strip claws 22 on the same chuck 20 through the plastic clips 24. A cylinder 31 is rotatably connected to the column 16. An adjusting rod 33 is connected to the output end of the cylinder 31, and the upper end of the adjusting rod 33 is rotatably connected to the protective cover 17.

[0038] A water guide hole 10 is opened at the bottom of the cylindrical barrel 6, and a water receiving plate 9 corresponding to the water guide hole 10 is set below the cylindrical barrel 6 to realize the recycling and reuse of the grinding liquid in the cylindrical barrel 6, thereby reducing resource waste.

[0039] A chassis slewing bearing 3 is installed on the slewing bearing square tube 2. The cylindrical bottom plate 4 is installed on the chassis slewing bearing 3. A side seat 12 is installed on one side of the chassis 1. A drive motor 13 is installed on the side seat 12. The output end of the drive motor 13 is fitted to the bottom of the cylindrical tube 6 via a belt or sprocket. The output end of the drive motor 2 19 is also fitted to the rotating main shaft 18 via a belt or sprocket.

[0040] Driven by the drive motor 13, the cylindrical barrel 6 can rotate inside the outer barrel 5, which in turn causes the polishing slurry contained inside the cylindrical barrel 6 to rotate. At the same time, the rotating spindle 18 can drive the hub 36, which is clamped on the chuck 20 by the long chuck claw 22 and the plastic clamp block 24, to rotate. This allows the hub 36 to rotate in the polishing slurry, while the polishing slurry itself can also rotate, improving the polishing efficiency and uniformity of the polishing slurry on the hub 36, and improving the overall polishing effect.

[0041] The upper end of the outer barrel 5 is also connected to a baffle ring 11. The baffle ring 11 has multiple openings in an array corresponding to the rotating spindle 18. The rotating spindle 18 is rotatably positioned in the openings. The baffle ring 11 can be rotated in the grinding fluid in the barrel 6 by the hub 36 and the grinding fluid is also rotated by the barrel 6 itself, thus preventing the grinding fluid from splashing out from the upper end of the outer barrel 5.

[0042] Multiple mounting bases 14 are arrayed on the outer side of the chassis 1. The column rotary motor 15 is mounted on the mounting base 14. The lower end of the protective cover 17 is connected to a pin. The upper end of the column 16 is mounted with an upper end plate. The protective cover 17 is rotatably mounted on the upper end plate of the column via the pin.

[0043] Multiple columns 16, rotating spindles 18 and chucks 20 are arranged in an array on the outer side of the chassis 1. Compared with traditional polishing machines or manual polishing devices, the polishing cycle is significantly shortened. Multiple arms can operate synchronously or independently, greatly improving the production cycle.

[0044] Example 2:

[0045] like Figure 1-9 As shown, the present invention discloses a rotary water polisher for wheel hub polishing. Compared with Embodiment 1, this embodiment discloses the structure on the chuck 20.

[0046] The chuck 20 has multiple slots 21 arranged in an array. Long claws 22 are slidably connected in the slots 21. Bolt holes 25 are provided on the long claws 22. Bolts are installed in the bolt holes 25. The long claws 22 are connected to the inner wall of the slots 21 through the bolts.

[0047] The long claw 22 has a through groove 26, the plastic block 24 has a bolt hole 28, a bolt 3 is installed in the bolt hole 28, the plastic block 24 is connected to a plastic bracket 23 through the bolt 3, the plastic bracket 23 has a bolt hole 27, a bolt 2 is installed in the bolt hole 27, the plastic bracket 23 is installed on the long claw 22 through the bolt 2, and the bolt 2 slides through the groove 26.

[0048] This allows the position of each plastic chuck seat 23 on each chuck 20 to be adjusted, and the plastic chuck blocks 24 mounted on the plastic chuck seats 23 by bolts 3 can be adjusted to have different distances from the axis of the chuck 20, while maintaining the same distance between each plastic chuck block 24 and the axis of the chuck 20. This enables the clamping of different models of wheel hubs 36. In actual operation, the plastic chuck blocks 24 on multiple chucks 20 can also be adjusted separately to process different models of wheel hubs 36 simultaneously, improving the versatility and efficiency of wheel hub water polishing.

[0049] Furthermore, the plastic clip 24 can be easily replaced by disassembling bolt 3, so that a new plastic clip 24 can be replaced in time after long-term use and when the clamping stability is reduced.

[0050] Example 3:

[0051] like Figure 1-9 As shown, the present invention discloses a rotary water polisher for wheel hub polishing. Compared with Embodiment 2, this embodiment discloses a structure for adjusting the angle of the protective cover 17.

[0052] A mounting plate 29 is installed on the lower outer side of the column 16. A first pin seat 30 is installed on the mounting plate 29. A second pin 32 is connected to the lower end of the cylinder 31. The second pin 32 is rotatably connected to the first pin seat 30. A third pin 34 is connected to the upper end of the adjusting rod 33. A second pin seat 35 is installed on the lower end of the protective cover 17 near the outer barrel 5. The third pin 34 is rotatably connected inside the second pin seat 35.

[0053] The column rotary motor 15 can drive the column 16 to rotate, and the drive motor 19 can also control the rotation of the main shaft 18, so that the chuck 20 can rotate 360° in the horizontal direction. At the same time, the main shaft 18 can also drive the wheel hub 36, which is clamped by the chuck 20 and the plastic clamp 24, to rotate 360°, so as to achieve polishing of the wheel hub 36, which is clamped by the long claw 22 and the plastic clamp 24, without dead angles. The rotation process has a wide polishing coverage and a more consistent and uniform polishing effect.

[0054] Example 4:

[0055] like Figure 1-9 As shown, the present invention discloses a rotary water polisher for wheel hub polishing. Compared with Embodiment 3, this embodiment discloses a control structure.

[0056] Each column 16 is equipped with a small electrical box 37 on one side. The small electrical box 37 is used to control the operation of the column rotary motor 15, drive motor 19 and cylinder 31 on the corresponding column 16.

[0057] A main electrical box 38 is also installed on one side of the chassis 1. The main electrical box 38 is used to control the operation of each small electrical box 37 and the drive motor 13.

[0058] By setting up a small electrical box 37, the robotic arms composed of each column 16, rotating spindle 18 and chuck 20 are individually controlled, ensuring that the wheel hubs 36 clamped on each rotating spindle 18 by the long claws 22 and plastic blocks 24 are independently water-jetting controlled. This enables automated and high-precision water-jetting regardless of whether the robotic arms are clamping the same model of wheel hubs 36 or different models of wheel hubs 36.

[0059] It can also comprehensively control the equipment through the main electrical box 38, realize the configuration of a multi-level PLC control system, and have functions such as parameter preset, mode switching, and fault alarm; it supports touch screen operation and programmed control, reduces reliance on manual technology, and facilitates automation integration.

[0060] Furthermore, this equipment:

[0061] It replaces traditional manual polishing, produces no polishing dust, and is very friendly to human health and the environment;

[0062] Used water jets can be recycled, reducing resource waste and meeting environmental protection requirements. The equipment operates with low noise, making it suitable for use in modern factory workshops.

[0063] With its compact structure and convenient maintenance, the integrated frame design and modular polishing arms facilitate installation, commissioning, and maintenance; key components feature a quick-release design to reduce maintenance time.

[0064] Compared to traditional vibratory polishing or manual grinding, rotary multi-arm water polishing is a flexible process that is gentler on the wheel hub surface and less likely to cause scratches, paint peeling or deformation.

[0065] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A rotary water polisher for wheel hub polishing, comprising a chassis (1), a slewing bearing square tube (2) mounted on the chassis (1), a cylindrical bottom plate (4) rotatably mounted on the slewing bearing square tube (2), and a cylindrical tube (6) mounted on the cylindrical bottom plate (4), characterized in that, The chassis (1) is also connected to an outer barrel (5) fitted on the outside of the cylindrical barrel (6). An inner barrel (7) is installed at the bottom of the cylindrical barrel (6), and a barrel cover (8) is installed at the top of the inner barrel (7). A water receiving tray (9) is also installed on the chassis (1) below the cylindrical barrel (6). A water guide hole (10) corresponding to the water receiving tray (9) is opened at the bottom of the cylindrical barrel (6). A drive motor (13) for driving the cylindrical barrel (6) to rotate is installed on one side of the chassis (1). Multiple column rotary motors (15) are arrayed on the outside of the chassis (1), and a column (16) is installed at the top of the column rotary motor (15). A protective cover (17) is rotatably mounted on the upper end of the column (16). A rotating spindle (18) is rotatably mounted inside the protective cover (17). A second drive motor (19) for driving the rotating spindle (18) is installed inside the protective cover (17). A chuck (20) is mounted on the end of the rotating spindle (18) away from the protective cover (17). Multiple long strip claws (22) are arrayed on the chuck (20), and plastic clips (24) are mounted on the long strip claws (22). A hub (36) is clamped between each long strip claw (22) on the same chuck (20) through the plastic clips (24). A cylinder (31) is rotatably connected to the column (16). An adjusting rod (33) is connected to the output end of the cylinder (31), and the upper end of the adjusting rod (33) is rotatably connected to the protective cover (17). The chuck (20) has multiple slots (21) arranged in an array. The long strip claw (22) is slidably connected in the slot (21). The long strip claw (22) has a bolt hole (25) and a bolt is installed in the bolt hole (25). The long strip claw (22) is connected to the inner wall of the slot (21) by the bolt. The long strip claw (22) has a through groove (26). The plastic block (24) has a bolt hole (28) and a bolt is installed in the bolt hole (28). The plastic block (24) is connected to a plastic card holder (23) by the bolt. The plastic card holder (23) has a bolt hole (27) and a bolt is installed in the bolt hole (27). The plastic card holder (23) is installed on the long strip claw (22) by the bolt, and the bolt slides through the groove (26).

2. A rotary water polisher for wheel hub polishing according to claim 1, characterized in that, The slewing bearing square tube (2) is equipped with a chassis slewing bearing (3), the cylindrical bottom plate (4) is installed on the chassis slewing bearing (3), a side seat (12) is installed on one side of the chassis (1), the first drive motor (13) is installed on the side seat (12), the output end of the first drive motor (13) is fitted to the bottom of the cylindrical tube (6) through a belt or sprocket, and the output end of the second drive motor (19) is also fitted to the rotating main shaft (18) through a belt or sprocket.

3. A rotary water polisher for wheel hub polishing according to claim 1, characterized in that, The upper end of the outer barrel (5) is also connected to a baffle ring (11), and the baffle ring (11) has multiple openings in an array corresponding to the rotating spindle (18), and the rotating spindle (18) is rotatably disposed in the openings.

4. A rotary water polisher for wheel hub polishing according to claim 1, characterized in that, Multiple mounting bases (14) are arrayed on the outer side of the chassis (1). The column rotary motor (15) is mounted on the mounting base (14). The lower end of the protective cover (17) is connected to a pin. The upper end of the column (16) is mounted with a column upper plate. The protective cover (17) is rotatably mounted on the column upper plate through the pin.

5. A rotary water polisher for wheel hub polishing according to claim 1, characterized in that, An mounting plate (29) is installed on the lower outer side of the column (16). A first pin seat (30) is installed on the mounting plate (29). A second pin (32) is connected to the lower end of the cylinder (31). The second pin (32) is rotatably connected to the first pin seat (30). A third pin (34) is connected to the upper end of the adjusting rod (33). A second pin seat (35) is installed on the side of the lower end of the protective cover (17) near the outer barrel (5). The third pin (34) is rotatably connected inside the second pin seat (35).

6. A rotary water polisher for wheel hub polishing according to claim 1, characterized in that, Each of the columns (16) is provided with a small electrical box (37) on one side. The small electrical box (37) is used to control the operation of the column rotary motor (15), drive motor (19) and cylinder (31) on the corresponding column (16).

7. A rotary water polisher for wheel hub polishing according to claim 6, characterized in that, A main electrical box (38) is also provided on one side of the chassis (1). The main electrical box (38) is used to control the operation of each small electrical box (37) and drive motor (13).

Citation Information

Patent Citations

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    CN103121188A

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