CN214322881U - Grinding machine for maintaining marine propeller - Google Patents

Abstract

The utility model relates to a hull maintenance technical field, more specifically say, it relates to an abrasive machine for marine screw maintenance, and its technical scheme main points are: including base, the emery wheel, the motor, protection casing and control lever, motor drive emery wheel rotates, the protection casing includes first housing and second housing, first housing and second housing parcel emery wheel, be provided with the automatic re-setting structure between first housing and the second housing, can be close to each other automatically between first housing and the second housing, the control lever slides in the roof top, the control lever can be close to or keep away from the protection casing, the control lever is connected with first movable block, the top of first housing and second housing is connected with second movable block and third movable block respectively, be connected with linkage structure between first movable block and the second movable block, the third movable block, the utility model discloses an abrasive machine for marine screw maintenance has the effect of being convenient for change the emery wheel.

Description

Grinding machine for maintaining marine propeller

Technical Field

The utility model belongs to the technical field of hull maintenance technique and specifically relates to a rotary sander for marine screw maintenance.

Background

The marine propeller is a device (refer to a hull 100 and a propeller 200 in fig. 1 and 2) that rotates in water by means of blades and converts engine rotational power into propulsive force. When a marine propeller is repaired, it is necessary to perform surface grinding of the propeller blades in addition to inspection of defects of the marine propeller, repair welding of the propeller, and correction of blade bending. To clean the surface of the propeller blade from dirt or to improve the surface smoothness of the propeller blade. Surface grinding of the blades of the propeller is often performed using an abrasive machine, and the process of surface grinding can be divided into rough grinding, finish grinding and polishing by replacing the abrasive wheel during grinding.

In the related technology, a grinding machine mainly comprises a base, a grinding wheel, a motor, a protective cover and the like, wherein the grinding wheel, the motor and the protective cover are all arranged on the base, the motor is used for driving the grinding wheel to rotate, and the protective cover is used for covering the grinding wheel to protect workers.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: although the protective cover can protect workers during the surface grinding process of the blade, the existence of the protective cover can be inconvenient for the workers to replace the grinding wheel because the protective cover covers the grinding wheel when the grinding wheel is replaced.

SUMMERY OF THE UTILITY MODEL

In order to facilitate changing the emery wheel, this application provides a grinder for marine screw maintenance.

The application provides a grinder for marine screw maintenance adopts following technical scheme:

a grinding machine for maintaining a marine propeller comprises a base, a grinding wheel, a motor, a protective cover and a control rod, wherein the motor drives the grinding wheel to horizontally rotate at the top of the base;

the first cover shell and the second cover shell are both arranged at the top of the base in a sliding manner, the first cover shell and the second cover shell can be close to or away from each other through sliding, an automatic resetting structure is arranged between the first cover shell and the second cover shell, and the first cover shell and the second cover shell can be automatically close to each other through the automatic resetting structure;

the control rod horizontally slides above the top of the base, the control rod can be close to or far away from the protective cover through sliding, the sliding direction of the control rod is perpendicular to the arrangement direction between the first housing and the second housing, one end, close to the protective cover, of the control rod is connected with a first moving block, the tops of the first housing and the second housing are respectively connected with a second moving block and a third moving block, a linkage structure is connected between the first moving block and the second moving block and between the first moving block and the third moving block, and when the first moving block is close to the second moving block and the third moving block, the second moving block and the third moving block are far away from each other.

Through adopting above-mentioned technical scheme, in the surface grinding process of the paddle of screw, when needs change the emery wheel, the operation control lever makes first movable block be close to second movable block and third movable block, first movable block makes second movable block and third movable block keep away from each other through the linkage subassembly, thereby make first housing and second housing keep away from each other, and then make the protection casing open, in order to change the emery wheel, change the completion back, loosen the control lever, under automatic re-setting structure's control, first housing and second housing are automatic to be close to each other, make the emery wheel of protection casing parcel once more, therefore, this an abrasive machine for marine screw maintenance has the effect of being convenient for change the emery wheel.

Preferably, the automatic reset structure comprises a polished rod, a spring, a first pressing block and a second pressing block, the polished rod horizontally penetrates through the first housing and the second housing, one end of the polished rod in the length direction is fixedly connected with a first limiting block, and the other end of the polished rod is in threaded connection with a second limiting block;

the polished rod is all located to first briquetting with the second briquetting, the both ends of spring are connected respectively first briquetting with between the second briquetting, first briquetting is contradicted the second housing, the second briquetting is contradicted the second stopper, the spring is in compression state.

Through adopting above-mentioned technical scheme, first briquetting and second briquetting have the trend of keeping away from each other under the effect of spring to make first housing and second housing support tightly between first stopper and first briquetting, and make and have the trend of being close to each other and supporting tightly between first housing and the second housing, in order to realize the effect that resets of automatic re-setting structure to first housing and second housing.

Preferably, the linkage structure includes a first connecting rod and a second connecting rod, two ends of the first connecting rod are respectively hinged to the first moving block and the second moving block, and two ends of the second connecting rod are respectively hinged to the first moving block and the third moving block.

By adopting the technical scheme, when the first moving block is close to the second moving block and the third moving block, the first moving block enables the second moving block and the third moving block to be far away from each other through the first connecting rod and the second connecting rod, and when the first moving block is far away from the second moving block and the third moving block, the first moving block enables the second moving block and the third moving block to be close to each other through the first connecting rod and the second connecting rod, so that linkage between the first moving block and the second moving block and linkage between the first moving block and the third moving block are realized.

Preferably, the bottom of the first housing and the bottom of the second housing are respectively connected with a first sliding block and a second sliding block, the top of the base is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are respectively located on the left side and the right side of the grinding wheel, the length directions of the first sliding groove and the second sliding groove are both parallel to the axis direction of the grinding wheel, and the first sliding block and the second sliding block slide in the first sliding groove and the second sliding groove respectively.

Through adopting above-mentioned technical scheme, through the slip of first slider in first spout and the slip of second slider in the second spout to make first housing and second housing slide at the top of base, and then realize being close to each other or keeping away from each other of first housing.

Preferably, a first guide rod and a second guide rod are respectively inserted into the first sliding groove and the second sliding groove, the first guide rod and the second guide rod are both horizontally arranged, the length direction of the first guide rod is parallel to the length direction of the first sliding groove, the first guide rod penetrates through the first sliding block, the length direction of the second guide rod is parallel to the length direction of the second sliding groove, and the second guide rod penetrates through the second sliding block.

Through adopting above-mentioned technical scheme, first guide arm and second guide arm play the guide effect to the sliding of first slider and the sliding of second slider respectively to make first housing and second housing stably slide.

Preferably, a transmission structure is connected between the motor and the grinding wheel, the transmission structure comprises a rotating shaft, a first belt wheel, a second belt wheel and a belt, the first belt wheel is coaxially connected to an output shaft of the motor, the rotating shaft horizontally rotates above the top of the base, one end of the rotating shaft extends into the first housing and the second housing and is coaxially connected with the grinding wheel, one end of the rotating shaft, which is far away from the grinding wheel, is coaxially connected with the second belt wheel, and the belt is tensioned between the first belt wheel and the second belt wheel.

Through adopting above-mentioned technical scheme, the motor during operation, the output shaft of motor drives first band pulley and rotates, and first band pulley drives the rotation of second band pulley through the belt again, and the second band pulley drives the pivot and rotates to drive the emery wheel and rotate, in order to realize the transmission of motor to the emery wheel.

Preferably, one end of the control rod, which is far away from the protective cover, is connected with a control block.

Through adopting above-mentioned technical scheme, the setting of control block is convenient for people to operate the control lever.

Preferably, the first guide rod and the second guide rod are inserted into the first sliding groove and the second sliding groove through two opposite side walls of the top of the base respectively, two mounting screws penetrate through the top of the base, and the two mounting screws are in threaded connection with the first guide rod and the second guide rod respectively.

Through adopting above-mentioned technical scheme, fix first guide arm and second guide arm in the top of base respectively through two mounting screws to make first guide arm and second guide arm stably to first slider and second slider lead.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the grinding machine for repairing the marine propeller has the effect of facilitating the replacement of the grinding wheel;

2. the automatic resetting structure enables the first housing and the second housing to have the trend of mutual approaching and abutting, so that the resetting effect of the automatic resetting structure on the first housing and the second housing is realized;

3. the first moving block enables the second moving block and the third moving block to be close to each other through the first connecting rod and the second connecting rod, and therefore linkage between the first moving block and the second moving block and linkage between the first moving block and the third moving block are achieved.

Drawings

Fig. 1 is an overall schematic view of a hull in the background art;

FIG. 2 is a general schematic view of a propeller of the prior art;

FIG. 3 is an overall schematic view of a grinder in an embodiment of the present application;

FIG. 4 is a schematic view of a part of the grinder of the embodiment of the present application;

FIG. 5 is a partial schematic view of another perspective of a grinder of the present application;

fig. 6 is a partially enlarged view of a portion a in fig. 5.

Description of reference numerals: 1. a base; 11. a top plate; 12. a middle plate; 13. a base plate; 14. a support bar; 21. a grinding wheel; 211. a rotating shaft; 22. an electric motor; 31. a first pulley; 32. a second pulley; 33. a belt; 4. a protective cover; 41. a first housing; 42. a second housing; 5. a control lever; 51. a control block; 61. a first slider; 62. a second slider; 63. a first chute; 64. a second chute; 65. a first guide bar; 66. a second guide bar; 67. mounting screws; 71. a polish rod; 711. a first stopper; 712. a second limiting block; 72. a spring; 721. a first pressing block; 722. a second pressing block; 81. a first moving block; 82. a second moving block; 83. a third moving block; 91. a first link; 92. a second link.

Detailed Description

The present application is described in further detail below with reference to figures 3-6.

The embodiment of the application discloses a grinder for marine propeller maintenance. Referring to fig. 3 and 4, the grinding wheel 21 machine for repairing the marine propeller includes a base 1, a grinding wheel 21, a motor 22, a shield 4, and a control lever 5, and the base 1, the grinding wheel 21, the motor 22, the shield 4, and the control lever 5 are all disposed on the base 1. Specifically, the base 1 includes a top plate 11, an intermediate plate 12 and a bottom plate 13 arranged from top to bottom, the top plate 11, the intermediate plate 12 and the bottom plate 13 are all in a rectangular plate shape, the top plate 11, the intermediate plate 12 and the bottom plate 13 are all horizontally arranged, wherein the thickness of the bottom plate 13 is thicker than the thickness of the top plate 11 and the intermediate plate 12, and the length and width of the bottom plate 13 is larger than the length and width of the top plate 11 and the intermediate plate 12. Fixedly connected with bracing piece 14 between the bottom of roof 11, intermediate lamella 12 corner position and the top of bottom plate 13, bracing piece 14 is rectangular rod-shaped, and the length direction of bracing piece 14 is parallel with vertical direction, and in this embodiment, the quantity of bracing piece 14 is four, and four corner positions at intermediate lamella 12 are fixed connection respectively in the middle part of bracing piece 14.

Referring to fig. 3 and 4, the motor 22 is fixedly arranged at the top of the middle plate 12, the grinding wheel 21 horizontally rotates above the top of the top plate 11, a transmission structure is connected between the motor 22 and the grinding wheel 21, the motor 22 drives the grinding wheel 21 to rotate through the transmission structure, and the grinding wheel 21 can be a coarse grinding wheel piece, a fine grinding wheel piece or a grinding wheel arrangement piece, which is selected according to the grinding process of the propeller blade of the marine propeller. Specifically, the transmission structure comprises a rotating shaft 211, a first belt pulley 31, a second belt pulley 32 and a belt 33, the first belt pulley 31 is coaxially connected to an output shaft of the motor 22, that is, an axis of the first belt pulley 31 is collinear with an axis of the output shaft of the motor 22, the rotating shaft 211 horizontally rotates above the top of the base 1, that is, the axis of the rotating shaft 211 is parallel to the horizontal direction, one end of the rotating shaft 211 extends into the protective cover 4 and is coaxially connected with the grinding wheel 21, that is, the axis of the grinding wheel 21 is collinear with the axis of the rotating shaft 211, one end of the rotating shaft 211, which is far away from the grinding wheel 21, is coaxially connected with the second belt pulley 32, that is, the axis of the second belt pulley 32 is collinear with the axis of the rotating shaft 211, the belt 33 is tensioned between the first belt pulley 31 and the second belt pulley 32, and the top plate 11 is provided with a hole for the belt 33 to pass through. When the motor 22 works, the output shaft of the motor 22 drives the first belt pulley 31 to rotate, the first belt pulley 31 drives the second belt pulley 32 to rotate through the belt 33, and the second belt pulley 32 drives the rotating shaft 211 to rotate, so that the grinding wheel 21 is driven to rotate, and the transmission of the motor 22 to the grinding wheel 21 is realized.

Referring to fig. 4 and 5, the shield 4 includes a first housing 41 and a second housing 42, the first housing 41 and the second housing 42 are respectively wrapped at two sides of the axis direction of the grinding wheel 21, the first housing 41 and the second housing 42 are both slid on the top of the base 1, and the first housing 41 and the second housing 42 can be close to or away from each other by sliding. Specifically, the bottom of first housing 41 and second housing 42 is connected with first slider 61 and second slider 62 respectively, first slider 61 and second slider 62 all are rectangular block, first spout 63 and second spout 64 have been seted up at the top of base 1, first spout 63 and second spout 64 correspond first slider 61 and second slider 62 respectively and are the rectangular channel, first spout 63 and second spout 64 are located the left and right sides of emery wheel 21 respectively, the length direction of first spout 63 and second spout 64 all is parallel with the axis direction of emery wheel 21, first slider 61 and second slider 62 slide respectively in first spout 63 and second spout 64. The first cover 41 and the second cover 42 slide on the top of the base 1 by the sliding movement of the first slider 61 in the first sliding groove 63 and the sliding movement of the second slider 62 in the second sliding groove 64, so as to realize the mutual approaching or mutual distancing of the first cover 41.

Referring to fig. 4 and 5, a first guide rod 65 and a second guide rod 66 are respectively inserted into the first sliding groove 63 and the second sliding groove 64, in this embodiment, the first guide rod 65 and the second guide rod 66 are both rectangular rod-shaped, the first guide rod 65 and the second guide rod 66 are both horizontally arranged, the length direction of the first guide rod 65 is parallel to the length direction of the first sliding groove 63, the first guide rod 65 passes through the first slider 61, the length direction of the second guide rod 66 is parallel to the length direction of the second sliding groove 64, and the second guide rod 66 passes through the second slider 62. The first guide rod 65 and the second guide rod 66 guide the sliding movement of the first slider 61 and the sliding movement of the second slider 62, respectively, so that the first housing 41 and the second housing 42 stably slide. Further, the first guide bar 65 and the second guide bar 66 are inserted into the first slide groove 63 and the second slide groove 64 through two opposite sidewalls of the top of the base 1, respectively. Referring to fig. 3, two mounting screws 67 are inserted into the top of the base 1, and the two mounting screws 67 are respectively screwed with the first guide bar 65 and the second guide bar 66. The first and second guide bars 65 and 66 are fixed in the top of the base 1 by two mounting screws 67, respectively, so that the first and second guide bars 65 and 66 stably guide the first and second sliders 61 and 62.

Referring to fig. 5 and 6, an automatic returning structure is provided between the first housing 41 and the second housing 42, and the first housing 41 and the second housing 42 can automatically approach each other by the automatic returning structure. Specifically, the automatic reset structure includes polished rod 71, spring 72, first briquetting 721 and second briquetting 722, polished rod 71 is the round bar, polished rod 71 level passes first housing 41 and second housing 42, the first stopper 711 of polished rod 71 length direction's one end fixedly connected with and other end threaded connection have second stopper 712, first stopper 711 and second stopper 712 all are the cake form, the axis of first stopper 711 and second stopper 712 all with the axis collineation of polished rod 71. The polished rod 71 is sleeved with the first pressing block 721 and the second pressing block 722, the first pressing block 721 and the second pressing block 722 are both annular, and the axes of the first pressing block 721 and the second pressing block 722 are collinear with the axis of the polished rod 71. Two ends of the spring 72 are respectively and fixedly connected between the first pressing block 721 and the second pressing block 722, the first pressing block 721 props against the second cover 42, the second pressing block 722 props against the second limiting block 712, and the spring 72 is in a compressed state. Under the action of the spring 72, the first pressing piece 721 and the second pressing piece 722 tend to be away from each other, so that the first housing 41 and the second housing 42 are abutted between the first limiting block 711 and the first pressing piece 721, and the first housing 41 and the second housing 42 tend to be close to each other and abutted, so that the resetting effect of the automatic resetting structure on the first housing 41 and the second housing 42 is realized.

Referring to fig. 4 and 5, the control rod 5 horizontally slides above the top of the base 1, the control rod 5 can move close to or away from the shield 4 by sliding, and the sliding direction of the control rod 5 is perpendicular to the arrangement direction between the first housing 41 and the second housing 42. One end of the control rod 5, which is far away from the protective cover 4, is connected with a control block 51, the control block 51 is rectangular, the control block 51 is convenient for people to operate the control rod 5, in other embodiments, the side wall of the control block 51 can be provided with anti-skid grains, and the situation that hands are slippery when people operate the control block 51 can be avoided due to the arrangement of the anti-skid grains.

Referring to fig. 5 and 6, a first moving block 81 is connected to one end of the control lever 5 close to the shield 4, a second moving block 82 and a third moving block 83 are connected to the tops of the first housing 41 and the second housing 42, respectively, and the first moving block 81, the second moving block 82 and the third moving block 83 are rectangular blocks. A linkage structure is connected between the first moving block 81 and the second and third moving blocks 82 and 83, and when the first moving block 81 approaches the second and third moving blocks 82 and 83, the second and third moving blocks 82 and 83 are separated from each other.

Referring to fig. 5 and 6, the linkage structure includes a first connecting rod 91 and a second connecting rod 92, both ends of the first connecting rod 91 are respectively hinged to the first moving block 81 and the second moving block 82, and both ends of the second connecting rod 92 are respectively hinged to the first moving block 81 and the third moving block 83. When the first moving block 81 is close to the second and third moving blocks 82 and 83, the first moving block 81 makes the second and third moving blocks 82 and 83 distant from each other through the first and second connecting rods 91 and 92, and when the first moving block 81 is distant from the second and third moving blocks 82 and 83, the first moving block 81 makes the second and third moving blocks 82 and 83 close to each other through the first and second connecting rods 91 and 92, thereby achieving the linkage between the first moving block 81 and the second and third moving blocks 82 and 83.

The implementation principle of the grinder for maintaining the marine propeller provided by the embodiment of the application is as follows: in the surface grinding process of the propeller blade, when the grinding wheel 21 needs to be replaced, the control rod 5 is operated to enable the first moving block 81 to be close to the second moving block 82 and the third moving block 83, the first moving block 81 enables the second moving block 82 and the third moving block 83 to be away from each other through the linkage assembly, so that the first housing 41 and the second housing 42 are away from each other, the protective cover 4 is opened, the grinding wheel 21 is replaced, after the replacement is completed, the control rod 5 is loosened, the first housing 41 and the second housing 42 are automatically close to each other under the control of the automatic resetting structure, the protective cover 4 wraps the grinding wheel 21 again, and therefore the grinding machine for marine propeller maintenance has the effect of facilitating the replacement of the grinding wheel 21.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a grinder for marine screw maintenance which characterized in that: the grinding wheel protection device comprises a base (1), a grinding wheel (21), a motor (22), a protection cover (4) and a control rod (5), wherein the motor (22) drives the grinding wheel (21) to horizontally rotate at the top of the base (1), the protection cover (4) comprises a first cover shell (41) and a second cover shell (42), and the first cover shell (41) and the second cover shell (42) are respectively wrapped on two sides of the grinding wheel (21) in the axial direction;

the first cover shell (41) and the second cover shell (42) are both slid on the top of the base (1), the first cover shell (41) and the second cover shell (42) can approach to each other or separate from each other through sliding, an automatic resetting structure is arranged between the first cover shell (41) and the second cover shell (42), and the first cover shell (41) and the second cover shell (42) can automatically approach to each other through the automatic resetting structure;

the control rod (5) horizontally slides above the top of the base (1), the control rod (5) can be close to or far away from the protective cover (4) through sliding, the sliding direction of the control rod (5) is vertical to the arrangement direction between the first cover shell (41) and the second cover shell (42), one end of the control rod (5) close to the protective cover (4) is connected with a first moving block (81), the tops of the first housing (41) and the second housing (42) are respectively connected with a second moving block (82) and a third moving block (83), a linkage structure is connected between the first moving block (81), the second moving block (82) and the third moving block (83), when the first moving block (81) is close to the second moving block (82) and the third moving block (83), the second moving block (82) and the third moving block (83) are far away from each other.

2. A grinder for marine propeller maintenance as claimed in claim 1, wherein: the automatic resetting structure comprises a polished rod (71), a spring (72), a first pressing block (721) and a second pressing block (722), the polished rod (71) horizontally penetrates through the first cover piece (41) and the second cover piece (42), one end of the polished rod (71) in the length direction is fixedly connected with a first limiting block (711), and the other end of the polished rod (71) is in threaded connection with a second limiting block (712);

the polished rod (71) is sleeved with the first pressing block (721) and the second pressing block (722), two ends of the spring (72) are connected between the first pressing block (721) and the second pressing block (722) respectively, the first pressing block (721) abuts against the second cover shell (42), the second pressing block (722) abuts against the second limiting block (712), and the spring (72) is in a compression state.

3. A grinder for marine propeller maintenance as claimed in claim 2, wherein: the linkage structure comprises a first connecting rod (91) and a second connecting rod (92), two ends of the first connecting rod (91) are respectively hinged to the first moving block (81) and the second moving block (82), and two ends of the second connecting rod (92) are respectively hinged to the first moving block (81) and the third moving block (83).

4. A grinder for marine propeller maintenance as claimed in claim 3, wherein: the bottom of the first cover shell (41) and the bottom of the second cover shell (42) are respectively connected with a first sliding block (61) and a second sliding block (62), the top of the base (1) is provided with a first sliding groove (63) and a second sliding groove (64), the first sliding groove (63) and the second sliding groove (64) are respectively located on the left side and the right side of the grinding wheel (21), the length directions of the first sliding groove (63) and the second sliding groove (64) are parallel to the axial direction of the grinding wheel (21), and the first sliding block (61) and the second sliding block (62) respectively slide in the first sliding groove (63) and the second sliding groove (64).

5. A grinder for marine propeller maintenance as claimed in claim 4, wherein: a first guide rod (65) and a second guide rod (66) are respectively inserted into the first sliding groove (63) and the second sliding groove (64), the first guide rod (65) and the second guide rod (66) are horizontally arranged, the length direction of the first guide rod (65) is parallel to the length direction of the first sliding groove (63), the first guide rod (65) penetrates through the first sliding block (61), the length direction of the second guide rod (66) is parallel to the length direction of the second sliding groove (64), and the second guide rod (66) penetrates through the second sliding block (62).

6. A grinder for marine propeller maintenance as claimed in claim 5, wherein: the grinding wheel grinding machine is characterized in that a transmission structure is connected between the motor (22) and the grinding wheel (21), the transmission structure comprises a rotating shaft (211), a first belt wheel (31), a second belt wheel (32) and a belt (33), the first belt wheel (31) is coaxially connected to an output shaft of the motor (22), the rotating shaft (211) horizontally rotates above the top of the base (1), one end of the rotating shaft (211) extends into the first housing (41) and the second housing (42) and is coaxially connected with the grinding wheel (21), one end of the rotating shaft (211) far away from the grinding wheel (21) is coaxially connected with the second belt wheel (32), and the belt (33) is tensioned between the first belt wheel (31) and the second belt wheel (32).

7. A grinder for marine propeller maintenance as claimed in claim 6, wherein: one end of the control rod (5) far away from the protective cover (4) is connected with a control block (51).

8. A grinder for marine propeller maintenance as claimed in claim 7, wherein: the first guide rod (65) and the second guide rod (66) are inserted into the first sliding groove (63) and the second sliding groove (64) through two opposite side walls of the top of the base (1) respectively, two mounting screws (67) penetrate through the top of the base (1), and the two mounting screws (67) are in threaded connection with the first guide rod (65) and the second guide rod (66) respectively.

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