Marine steering wheel polishing equipment

Abstract

The marine steering wheel polishing equipment comprises a fixed table, a swing motor is arranged below the fixed table, polishing frames distributed in a circumferential array mode are slidably arranged on the upper wall of the fixed table, a first sliding base is arranged at one end of the upper wall of each polishing frame, a first upper rotating shaft is hinged to the interior of each first sliding base, and a first lower rotating shaft is hinged to the portion, located at the lower end of each first sliding base, of each polishing frame; a second sliding seat is arranged at the end, away from the first sliding seat, of the upper wall of the polishing frame, a second upper rotating shaft is hinged into the second sliding seat, a second lower rotating shaft is hinged to the portion, located at the lower end of the second sliding seat, of the polishing frame, and an outer polishing belt is wound around the second upper rotating shaft and the second lower rotating shaft. The inner polishing belt and the outer polishing belt are used for wrapping and polishing the surface of the circular ring body between the adjacent spokes, the limitation of the spokes on the circular ring body of the steering wheel is overcome, traditional rotary polishing is adjusted into reciprocating swing polishing, and the polishing operation cost is lower.

Description

Technical Field

[0001] The present invention belongs to the technical field of polishing, and specifically refers to a polishing device for a marine steering wheel. Background Art

[0002] A marine steering wheel, also known as a ship's rudder, is an important component for controlling the heading of a ship. A marine steering wheel is generally formed by welding a circular ring body and a plurality of spoke cylinders. During the cutting and welding process of metal pipes, problems such as burrs and bumps will occur. During use, the above-mentioned appearance quality problems will affect the driving feel and even cause damage to the palm. Therefore, it is necessary to polish the marine steering wheel.

[0003] Limited by the structure of the steering wheel spokes, the welded steering wheel cannot be polished in the traditional rotary polishing method for the inner side of the circular ring body, and the spokes will block the rotation of the polishing device on the inner side of the circular ring body. Currently, in the industry, a dry polishing machine is often used to polish the steering wheel, that is, the friction of abrasives (such as glass beads, quartz sand, alumina sand, etc.) on the surface of the workpiece is used to achieve the purpose of removing surface defects. However, the dry polishing machine still has problems such as large equipment volume, large abrasive dust, and high maintenance cost of abrasives. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a polishing device for a marine steering wheel, which at least partially solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: A polishing device for a marine steering wheel proposed by the present invention includes a fixed table. A swing motor is provided at the center of the lower wall of the fixed table. Radially arranged limiting grooves are circumferentially arrayed on the upper wall of the fixed table. An inclined groove is provided on the side of the limiting groove, and the extension line of the inclined groove intersects with the limiting groove. A positioning column is provided at the center of the fixed table, and the output shaft of the swing motor penetrates through the center of the positioning column.

[0006] Furthermore, a polishing frame is slidably provided on the upper wall of the fixed table and is circumferentially arrayed. The polishing frame is slidably arranged in the limiting groove.

[0007] Furthermore, a spoke polishing group is slidably arranged in the inclined groove. The spoke polishing group includes a sliding cylinder. The sliding cylinder is slidably arranged in the inclined groove, and a sand belt capable of being wound around the steering wheel spokes is provided at the upper end of the sliding cylinder.

[0008] Furthermore, a lifting seat is slidably arranged in the sliding cylinder. A tension spring is connected between the lifting seat and the sliding cylinder. Pressure plates are symmetrically provided on the upper wall of the lifting seat, and a fastening bolt penetrating through the pressure plate is threadedly connected to the upper wall of the lifting seat.

[0009] Further, a first sliding seat is slidably provided at one end of the upper wall of the polishing frame away from the swing motor. Through grooves are symmetrically provided on the upper wall of the polishing frame. The first sliding seat is slidably arranged in one group of the through grooves. A first spring is connected between the first sliding seat and the polishing frame. A first upper rotating shaft is hinged in the first sliding seat. A first lower rotating shaft is hinged at the lower end of the polishing frame where the first sliding seat is located. An inner polishing belt is wound around the first upper rotating shaft and the first lower rotating shaft. The inner polishing belt passes through the through groove under the first sliding seat.

[0010] Further, in order to achieve a better polishing effect and make the inner polishing belt rotate actively for polishing, a driving wheel is rotatably provided on the side wall of the polishing frame close to the first sliding seat. A polishing motor is provided on the upper wall of the polishing frame close to the driving wheel. A driving belt is wound around the driving wheel and the output shaft of the polishing motor. A first synchronous wheel is provided at the end of the first upper rotating shaft. A first synchronous belt is wound around the first synchronous wheel and the driving wheel.

[0011] Further, in order to adapt to the first sliding seat at different positions and keep the first synchronous belt always in a tensioned state, a first tensioning seat is slidably provided on the side wall of the polishing frame close to the driving wheel. A first tensioning wheel is rotatably provided on the first tensioning seat. The first tensioning wheel is connected in cooperation with the first synchronous belt. A first tensioning spring is connected between the first tensioning seat and the bottom wall of the polishing frame.

[0012] Further, a second sliding seat is slidably provided at one end of the upper wall of the polishing frame close to the swing motor. The second sliding seat is slidably arranged in the through groove away from the first sliding seat. A second spring is connected between the second sliding seat and the polishing frame. A second upper rotating shaft is hinged in the second sliding seat. A second lower rotating shaft is hinged at the lower end of the polishing frame where the second sliding seat is located. An outer polishing belt is wound around the second upper rotating shaft and the second lower rotating shaft. The outer polishing belt passes through the through groove under the second sliding seat.

[0013] Further, in order to make the outer polishing belt rotate actively for polishing, a third synchronous wheel is rotatably provided on the side wall of the polishing frame close to the second sliding seat. The third synchronous wheel is coaxially arranged with the driving wheel for rotation. A second synchronous wheel is provided at the end of the second upper rotating shaft. A second synchronous belt is wound around the second synchronous wheel and the third synchronous wheel.

[0014] Further, in order to adapt to the second sliding seat at different positions and keep the second synchronous belt always in a tensioned state, a second tensioning seat is slidably provided on the side wall of the polishing frame away from the driving wheel. A second tensioning wheel is rotatably provided on the second tensioning seat. The second tensioning wheel is connected in cooperation with the second synchronous belt. A second tensioning spring is connected between the second tensioning seat and the bottom wall of the polishing frame.

[0015] Further, to facilitate the placement of the steering wheel and enable the installation of the inner polishing belt and the outer polishing belt after the steering wheel is fixed, the first sliding seat and the second sliding seat have the same structure, and corner grooves are provided on the side walls of both the first sliding seat and the second sliding seat.

[0016] The beneficial effects achieved by the present invention are as follows: The swinging motor causes the steering wheel to swing reciprocally between two adjacent spokes, and then the circular ring surface between the adjacent spokes is coated and polished by the inner polishing belt and the outer polishing belt. The polishing noise of the polishing belt is small, overcoming the limitation of the spokes on the circular ring of the steering wheel. The traditional rotary polishing is adjusted to reciprocating swinging polishing, and the overall volume of the equipment is small, without abrasive cost, and is applicable to the polishing operations of steering wheels of various different sizes. Description of the Drawings

[0017] Figure 1 is the working state of the marine steering wheel polishing equipment according to the embodiment of the present invention Figure 1 ; Figure 2 is the working state of the marine steering wheel polishing equipment according to the embodiment of the present invention Figure 2 ; Figure 3 is the structural schematic diagram of the fixed table; Figure 4 is the partial cross-sectional view of the spoke polishing group; Figure 5 is the positional relationship of the components on the polishing frame Figure 1 ; Figure 6 is the positional relationship of the components on the polishing frame Figure 2 ; Figure 7 is the structural schematic diagram of the polishing frame; Figure 8 is the structural schematic diagram of the first sliding seat.

[0018] Wherein, 1, fixed table; 2, swinging motor; 3, polishing frame; 4, steering wheel; 5, spoke polishing group; 6, inclined groove; 7, limiting groove; 8, positioning column; 9, sliding cylinder; 10, lifting seat; 11, tension spring; 12, pressing plate; 13, fastening bolt; 14, abrasive belt; 15, sliding groove; 16, first sliding seat; 17, second sliding seat; 18, first spring; 19, second spring; 20, first upper rotating shaft; 21, first lower rotating shaft; 22, inner polishing belt; 23, second upper rotating shaft; 24, second lower rotating shaft; 25, outer polishing belt; 26, first synchronous pulley; 27, driving pulley; 28, polishing motor; 29, driving belt; 30, first tensioning pulley; 31, first synchronous belt; 32, first tensioning seat; 33, first tensioning spring; 34, second synchronous pulley; 35, third synchronous pulley; 36, second tensioning pulley; 37, second synchronous belt; 38, second tensioning seat; 39, second tensioning spring; 40, corner groove.

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0022] As Figures 1 - 3 shown, a marine steering wheel polishing device proposed in an embodiment of the present invention includes a fixed platform 1. A swing motor 2 is provided at the center of the lower wall of the fixed platform 1. Radially arranged limiting grooves 7 are circumferentially and arrayed on the upper wall of the fixed platform 1. An inclined groove 6 is provided on the side of the limiting groove 7, and the extension line of the inclined groove 6 intersects with the limiting groove 7. A positioning column 8 is provided at the center of the fixed platform 1. The output shaft of the swing motor 2 passes through the center of the positioning column 8. The lower wall of the steering wheel 4 is fixed on the positioning column 8, and the center of the steering wheel 4 is key-connected to the output shaft of the swing motor 2. During the polishing operation, the swing motor 2 drives the steering wheel 4 to swing reciprocally, and the swing angle is adapted to the angle between the spokes of the steering wheel 4.

[0023] The upper wall of the fixed platform 1 is slidably provided with polishing frames 3 that are circumferentially and arrayed. The polishing frames 3 are slidably arranged in the limiting grooves 7. The polishing frames 3 can be fixed at any position in the limiting grooves 7 (the fixing direction is not shown in the accompanying drawings and can be selected according to needs), so that the polishing frames 3 are positioned at positions adapted to the circular ring of the steering wheel 4, so as to polish the steering wheel 4 by the polishing frames 3.

[0024] As Figure 4As shown in the figure, a spoke polishing group 5 is slidably arranged in the inclined groove 6. The spoke polishing group 5 includes a sliding cylinder 9 which is slidably arranged in the inclined groove 6. A sand belt 14 capable of being wound around the spokes of the steering wheel 4 is arranged at the upper end of the sliding cylinder 9. When the steering wheel 4 swings back and forth under the action of the swinging motor 2, the spokes swing back and forth accordingly. The sliding cylinder 9 will slide back and forth along the direction of the inclined groove 6, and the sand belt 14 will slide from the inner end to the outer end of the spokes along with the sliding cylinder 9, so as to polish the spokes. Preferably, the sand belt 14 is wound two circles and can completely wrap the spokes, so as to leave no polishing dead angle.

[0025] There are differences in the diameters of the spokes of the steering wheel 4, and the heights at which the steering wheel 4 is fixed on the positioning column 8 are also different. In order to adapt to steering wheels 4 of different sizes, a lifting seat 10 is slidably arranged in the sliding cylinder 9. A tension spring 11 is connected between the lifting seat 10 and the sliding cylinder 9. Pressing plates 12 are symmetrically arranged on the upper wall of the lifting seat 10. A fastening bolt 13 passing through the pressing plate 12 is threadedly connected to the upper wall of the lifting seat 10. After the sand belt 14 is wound around the spokes, the two ends of the sand belt 14 respectively pass through the lower sides of the two pressing plates 12 and are then pressed and fixed by the fastening bolt 13. The tension spring 11 always pulls the lifting seat 10 downward, so that the sand belt 14 is closely attached to the spokes, so as to polish the spokes. And the tension spring 11 can automatically adjust the height of the lifting seat 10 to a height suitable for it, which is applicable to the polishing operations of various steering wheels 4.

[0026] As Figure 1 、 Figure 5 、 Figure 6 and Figure 7As shown in the figure, a first sliding seat 16 is slidably arranged at one end of the upper wall of the polishing rack 3 away from the swing motor 2. Through grooves 15 are symmetrically arranged on the upper wall of the polishing rack 3. The first sliding seat 16 is slidably arranged in one group of the through grooves 15. A first spring 18 is connected between the first sliding seat 16 and the polishing rack 3. The first spring 18 always pulls the first sliding seat 16 towards the outside of the fixed table 1. A first upper rotating shaft 20 is hinged in the first sliding seat 16. The width of the first upper rotating shaft 20 is adapted to the through groove 15. The polishing rack 3 is hinged with a first lower rotating shaft 21 at the lower end of the first sliding seat 16. An inner polishing belt 22 is wound around the first upper rotating shaft 20 and the first lower rotating shaft 21. The inner polishing belt 22 passes through the through groove 15 under the first sliding seat 16. During use, the inner polishing belt 22 is tangent to the inner side wall of the circular ring of the steering wheel 4. And under the action of the first spring 18, the first upper rotating shaft 20 moves outwards following the first sliding seat 16, so that the inner polishing belt 22 fits on the circular ring. When the steering wheel 4 swings back and forth, the inner polishing belt 22 polishes the side wall of the circular ring. It should be noted that the first upper rotating shaft 20, the steering wheel 4 and the first lower rotating shaft 21 jointly define the polishing range of the inner polishing belt 22 on the circular ring of the steering wheel 4. Rollers can be added below the first upper rotating shaft 20 to increase the polishing range of the inner polishing belt 22 on the steering wheel 4, so that the polishing angle is greater than 180 degrees, that is, more than half of the cross-section of the circular ring of the steering wheel 4.

[0027] In order to achieve a better polishing effect and make the inner polishing belt 22 rotate actively for polishing, a driving wheel 27 is rotatably arranged on the side wall of the polishing rack 3 close to the first sliding seat 16. A polishing motor 28 is arranged on the upper wall of the polishing rack 3 close to the driving wheel 27. A driving belt 29 is wound around the output shafts of the driving wheel 27 and the polishing motor 28. A first synchronous wheel 26 is arranged at the end of the first upper rotating shaft 20. A first synchronous belt 31 is wound around the first synchronous wheel 26 and the driving wheel 27. When the polishing motor 28 rotates, the driving wheel 27 is driven to rotate through the driving belt 29. The driving wheel 27 then drives the first synchronous wheel 26 to rotate through the first synchronous belt 31, so that the first upper rotating shaft 20 rotates. When the first upper rotating shaft 20 rotates, it drives the inner polishing belt 22 to rotate in a cycle, so as to actively polish the inner side wall of the circular ring of the steering wheel 4, improving the polishing efficiency and quality.

[0028] In order to adapt to the first sliding seat 16 at different positions and keep the first synchronous belt 31 always in a tensioned state, a first tensioning seat 32 is slidably provided on the side wall of the polishing frame 3 close to the driving wheel 27. A first tensioning wheel 30 is rotatably provided on the first tensioning seat 32. The first tensioning wheel 30 is cooperatively connected with the first synchronous belt 31, that is, the first synchronous belt 31 is arranged to surround the first synchronous pulley 26, the driving wheel 27 and the first tensioning wheel 30. A first tensioning spring 33 is connected between the first tensioning seat 32 and the bottom wall of the polishing frame 3. The first spring 18 always pulls the first tensioning wheel 30 downward. When the first sliding seat 16 drives the first synchronous pulley 26 to move left and right, the first tensioning wheel 30 can always keep the first synchronous belt 31 in a tensioned state, thereby ensuring the normal rotation operation of the first synchronous pulley 26.

[0029] A second sliding seat 17 is slidably provided at one end of the upper wall of the polishing frame 3 close to the swinging motor 2. The second sliding seat 17 is slidably arranged in the sliding groove 15 away from the first sliding seat 16. A second spring 19 is connected between the second sliding seat 17 and the polishing frame 3. The second spring 19 always pulls the second sliding seat 17 towards the inner side of the fixed table 1. A second upper rotating shaft 23 is hinged in the second sliding seat 17. The width of the second upper rotating shaft 23 is adapted to the sliding groove 15. The polishing frame 3 is hinged with a second lower rotating shaft 24 at the lower end of the second sliding seat 17. An outer polishing belt 25 is wound around the second upper rotating shaft 23 and the second lower rotating shaft 24. The outer polishing belt 25 passes through the sliding groove 15 under the second sliding seat 17. During use, the outer polishing belt 25 is tangent to the outer side wall of the circular ring of the steering wheel 4. And under the action of the second spring 19, the second upper rotating shaft 23 follows the second sliding seat 17 to move inwards, so that the outer polishing belt 25 fits on the circular ring. When the steering wheel 4 swings back and forth, the outer polishing belt 25 polishes the side wall of the circular ring. Similarly, the second upper rotating shaft 23, the steering wheel 4 and the second lower rotating shaft 24 jointly define the polishing range of the outer polishing belt 25 on the circular ring of the steering wheel 4. Similarly, rollers can be added below the second upper rotating shaft 23 to increase the polishing range of the outer polishing belt 25 on the steering wheel 4, so that the polishing angle is greater than 180 degrees, that is, more than half of the cross-section of the circular ring of the steering wheel 4. Under the joint action of the outer polishing belt 25 and the inner polishing belt 22, the circular ring is completely wrapped without polishing dead angles.

[0030] In order to make the outer polishing belt 25 rotate actively for polishing, a third synchronous pulley 35 is rotatably provided on the side wall of the polishing frame 3 close to the second sliding seat 17. The third synchronous pulley 35 is coaxially rotated with the driving wheel 27. A second synchronous pulley 34 is provided at the end of the second upper rotating shaft 23. A second synchronous belt 37 is wound around the second synchronous pulley 34 and the third synchronous pulley 35. When the driving wheel 27 rotates, the third synchronous pulley 35 also rotates accordingly and drives the second synchronous pulley 34 to rotate through the second synchronous belt 37, so that the outer polishing belt 25 on the second upper rotating shaft 23 performs cyclic polishing operations.

[0031] In order to adapt to the second slide 17 at different positions and keep the second synchronous belt 37 in a tensioned state at all times, a second tensioning seat 38 is slidingly provided on the side wall of the polishing frame 3 away from the driving wheel 27, and a second tensioning wheel 36 is rotatably provided on the second tensioning seat 38. The second tensioning wheel 36 is cooperatively connected with the second synchronous belt 37, and a second tensioning spring 39 is connected between the second tensioning seat 38 and the bottom wall of the polishing frame 3. The working principle of the second tensioning wheel 36 is the same as that of the first tensioning wheel 30, which will not be repeated here.

[0032] like Figure 8 As shown, in order to facilitate the placement of the steering wheel 4, the inner polishing belt 22 and the outer polishing belt 25 can be installed after the steering wheel 4 is fixed, the first slide 16 and the second slide 17 have the same structure, and the side walls of the first slide 16 and the second slide 17 are both provided with a corner groove 40. Before installing the steering wheel 4, the first upper rotating shaft 20 and the second upper rotating shaft 23 are taken out from the corner groove 40 so that the inner polishing belt 22 and the outer polishing belt 25 will not restrict the steering wheel 4. After the steering wheel 4 is installed and fixed, the first upper rotating shaft 20 and the second upper rotating shaft 23 can be re-installed into the corner groove 40. Under the action of the tensioning force, the first upper rotating shaft 20 and the second upper rotating shaft 23 will not detach from the corner groove 40.

[0033] During specific use, first fix the steering wheel 4 on the positioning column 8, connect the output shaft of the swing motor 2 with the center hole key of the steering wheel 4, then take out the first upper rotating shaft 20 and the second upper rotating shaft 23 from the corner groove 40, push the polishing frame 3 along the direction of the limiting groove 7, make the circular ring body of the steering wheel 4 between the first slide 16 and the second slide 17, and then fix the polishing frame 3.

[0034] Then the first upper rotating shaft 20 is passed around the inner side of the circular ring body of the steering wheel 4 so that the inner polishing belt 22 is tangent to the inner side of the circular ring body, and the first upper rotating shaft 20 is fixed in the corner groove 40 of the first slide seat 16. The first spring 18 and the inner polishing belt 22 apply opposite and equal pulling forces to the first slide seat 16 to keep the inner polishing belt 22 in a taut state. At the same time, the first tensioning wheel 30 tightens the first synchronous belt 31 under the action of the first tensioning seat 32 and the first tensioning spring 33.

[0035] Then, the second upper rotating shaft 23 is passed around the outer side of the circular ring body of the steering wheel 4 so that the outer polishing belt 25 is tangent to the outer side of the circular ring body, and the second upper rotating shaft 23 is fixed in the corner groove 40 of the second seat. The second spring 19 and the outer polishing belt 25 also apply opposite and equal pulling forces to the second slide seat 17 to keep the outer polishing belt 25 in a taut state. At the same time, the second tensioning wheel 36 tightens the second synchronous belt 37 under the action of the second tensioning seat 38 and the second tensioning spring 39.

[0036] Secondly, wind the abrasive belt 14 around the spokes of the steering wheel 4, preferably two turns, so that the abrasive belt 14 completely wraps the spokes. Then insert both ends of the abrasive belt 14 under the pressing plate 12 and turn the fastening bolts 13 to firmly fasten the abrasive belt 14 to the lifting seat 10. Driven by the abrasive belt 14, the lifting seat 10 overcomes the resistance of the tension spring 11, so that the abrasive belt 14 is always adapted to the height of the spokes.

[0037] Finally, start the swing motor 2 and the polishing motor 28. The swing motor 2 drives the steering wheel 4 to rotate back and forth by a certain angle, so that the circular ring between adjacent spokes swings back and forth between the inner polishing belt 22 and the outer polishing belt 25 of the adjacent block. When the steering wheel 4 swings, the abrasive belt 14 reciprocates along the length direction of the spokes under the action of the sliding cylinder 9, so as to polish the circumferential outer wall of the spokes. The circumferential side wall of the circular ring reciprocates and rubs against the inner polishing belt 22 and the outer polishing belt 25 to realize the polishing of the circular ring.

[0038] When the polishing motor 28 rotates, it will drive the driving belt 29 to drive the driving wheel 27 and the third synchronous wheel 35 to rotate simultaneously. The driving wheel 27 and the third synchronous wheel 35 will drive the first upper rotating shaft 20 and the second upper rotating shaft 23 to rotate through the first synchronous belt 31 and the second synchronous belt 37, so as to drive the inner polishing belt 22 and the outer polishing belt 25 to rotate actively, so as to actively polish the circular ring part of the steering wheel 4, improving the polishing efficiency and quality.

[0039] After polishing, reverse the operation to take out the first upper rotating shaft 20 and the second upper rotating shaft 23 from the corner groove 40, and then the steering wheel 4 can be removed.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A marine steering wheel polishing device, characterized in that, Comprising: A fixed platform (1) is provided with a swing motor (2) below it. The steering wheel is fixed on the output shaft of the swing motor (2). A polishing frame (3) distributed in a circular pattern is slidably arranged on the upper wall of the fixed platform (1); A first sliding seat (16) is slidably arranged at one end of the upper wall of the polishing frame (3) away from the swing motor (2). A first spring (18) is connected between the first sliding seat (16) and the polishing frame (3). A first upper rotating shaft (20) is hinged in the first sliding seat (16). A first lower rotating shaft (21) is hinged at the lower end of the polishing frame (3) where the first sliding seat (16) is located. An inner polishing belt (22) is wound around the first upper rotating shaft (20) and the first lower rotating shaft (21); A second sliding seat (17) is slidably arranged at one end of the upper wall of the polishing frame (3) close to the swing motor (2). A second spring (19) is connected between the second sliding seat (17) and the polishing frame (3). A second upper rotating shaft (23) is hinged in the second sliding seat (17). A second lower rotating shaft (24) is hinged at the lower end of the polishing frame (3) where the second sliding seat (17) is located. An outer polishing belt (25) is wound around the second upper rotating shaft (23) and the second lower rotating shaft (24).

2. The marine steering wheel polishing device according to claim 1, characterized in that: A driving wheel (27) is rotatably arranged on the side wall of the polishing frame (3) close to the first sliding seat (16). A polishing motor (28) is arranged on the upper wall of the polishing frame (3) close to the driving wheel (27). A driving belt (29) is wound around the output shafts of the driving wheel (27) and the polishing motor (28). A first synchronous wheel (26) is arranged at the end of the first upper rotating shaft (20). A first synchronous belt (31) is wound around the first synchronous wheel (26) and the driving wheel (27).

3. The marine steering wheel polishing device according to claim 2, wherein: A first tensioning seat (32) is slidably arranged on the side wall of the polishing frame (3) on the side close to the driving wheel (27). A first tensioning wheel (30) is rotatably arranged on the first tensioning seat (32). The first tensioning wheel (30) is connected in cooperation with the first synchronous belt (31). A first tensioning spring (33) is connected between the first tensioning seat (32) and the bottom wall of the polishing frame (3).

4. The marine steering wheel polishing equipment according to claim 2, wherein: A third synchronous wheel (35) is rotatably arranged on the side wall of the polishing frame (3) close to the second sliding seat (17). The third synchronous wheel (35) is coaxially rotated and arranged with the driving wheel (27). A second synchronous wheel (34) is arranged at the end of the second upper rotating shaft (23). A second synchronous belt (37) is wound around the second synchronous wheel (34) and the third synchronous wheel (35).

5. The marine steering wheel polishing device according to claim 4, wherein: A second tensioning seat (38) is slidably arranged on the side wall of the polishing frame (3) on the side away from the driving wheel (27). A second tensioning wheel (36) is rotatably arranged on the second tensioning seat (38). The second tensioning wheel (36) is connected in cooperation with the second synchronous belt (37). A second tensioning spring (39) is connected between the second tensioning seat (38) and the bottom wall of the polishing frame (3).

6. The marine steering wheel polishing device according to claim 1, characterized in that: The upper wall circumference of the fixed table (1) is provided with radially arranged limiting grooves (7). The polishing frame (3) is slidably arranged in the limiting grooves (7). An inclined groove (6) is arranged on the side of the limiting groove (7), and the extension line of the inclined groove (6) intersects with the limiting groove (7). A positioning column (8) is arranged at the center of the fixed table (1). The output shaft of the swing motor (2) penetrates through the center of the positioning column (8), and the steering wheel is fixed on the positioning column (8).

7. The marine steering wheel polishing device according to claim 6, characterized in that: A spoke polishing group (5) is slidably arranged in the inclined groove (6). The spoke polishing group (5) includes a sliding cylinder (9). The sliding cylinder (9) is slidably arranged in the inclined groove (6). A sand belt (14) capable of being wound around the steering wheel spokes is arranged at the upper end of the sliding cylinder (9).

8. The marine steering wheel polishing device according to claim 7, characterized in that: A lifting seat (10) is slidably arranged in the sliding cylinder (9). A tension spring (11) is connected between the lifting seat (10) and the sliding cylinder (9). Pressing plates (12) are symmetrically arranged on the upper wall of the lifting seat (10). A fastening bolt (13) penetrating through the pressing plate (12) is threadedly connected to the upper wall of the lifting seat (10).

9. The marine steering wheel polishing device according to claim 1, characterized in that: Through grooves (15) are symmetrically arranged on the upper wall of the polishing frame (3). The first sliding seat (16) is slidably arranged in one group of the through grooves (15). The second sliding seat (17) is slidably arranged in the through groove (15) far from the first sliding seat (16). The inner polishing belt (22) is arranged through the through groove (15) under the first sliding seat (16). The outer polishing belt (25) is arranged through the through groove (15) under the second sliding seat (17).

10. The marine steering wheel polishing device according to claim 1, wherein: The structures of the first sliding seat (16) and the second sliding seat (17) are the same. Corner grooves (40) are arranged on the side walls of the first sliding seat (16) and the second sliding seat (17).

Images