Adjustable counterweight device for propeller overturning balance

Abstract

The utility model relates to the technical field of propellers, in particular to an adjustable counterweight device for turning balance of a propeller, which comprises a support, a rotating component, a rotating shaft, a mounting seat, an attitude sensor and the like. The number of the supports is two, rotating assemblies are connected to the supports, rotating shafts are connected to the rotating assemblies, the ends, close to each other, of the rotating shafts are connected with the same mounting base, and an attitude sensor is connected to the bottom of the mounting base. According to the utility model, the linear guide rail, the balancing weight and the attitude sensor are arranged, the rotating angle of the mounting seat is monitored through the attitude sensor, and when the mounting seat is inclined, the balancing weight is driven by the sliding block on the linear guide rail to move along the linear guide rail, so that the gravity center of the mounting seat can be adjusted by adjusting the position of the balancing weight; therefore, the tilting posture of the mounting seat is corrected, the overturning moment of the mounting seat is accurately counteracted according to the lever principle, and energy consumption and abrasion of the rotating assembly are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to propeller technical field especially relates to a kind of adjustable counterweight device for propeller overturning balance. BACKGROUND

[0002] As the key component in ship propulsion system, the performance of propeller directly affects the running efficiency and safety of ship. In the long-term use process, propeller will be affected by seawater corrosion, biological attachment and mechanical wear and other factors, so it needs to be maintained regularly to ensure its normal work.

[0003] When maintaining propeller, it is usually needed to be disassembled from ship body, hoisted by crane with sling, and rotated to check or repair different parts. Due to the uneven weight distribution and shape characteristics of propeller, it is easy to swing during hoisting and rotating, which not only increases the complexity of maintenance work, but also may cause potential damage to the lifting equipment used. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model aims at providing a kind of adjustable counterweight device for propeller overturning balance.

[0005] An adjustable counterweight device for propeller overturning balance comprises a support, a rotating assembly, a rotating shaft, a mounting seat, a posture sensor, a mounting ring, a linear guide rail, a counterweight block, a first hydraulic cylinder, a shell, a fixed block and a clamping assembly. The number of supports is two, each of which is connected with a rotating assembly. Each rotating assembly is connected with a rotating shaft. The ends of the rotating shafts close to each other are connected with the same mounting seat. The bottom of the mounting seat is connected with a posture sensor. The posture sensor is signal connected with the controller of the linear guide rail. The mounting seat is connected with a mounting ring. Each rotating shaft is connected with a double-sliding-block linear guide rail. Each sliding block of the linear guide rail is connected with a counterweight block. The mounting seat is connected with a first hydraulic cylinder. The cylinder barrel of the first hydraulic cylinder is connected with a shell. The piston rod of the first hydraulic cylinder extends into the shell. The piston rod of the first hydraulic cylinder is connected with a fixed block. The shell and the fixed block are connected with a clamping assembly.

[0006] More preferably, the rotating shaft is located at the center of gravity of the linear guide rail.

[0007] More preferably, the top of the mounting ring is inclined, and the outer wall of the top of the mounting ring is higher than the inner wall of the top.

[0008] More preferably, the clamping assembly comprises a first inclined block, a second inclined block and a support plate. The fixed block is connected with at least three first inclined blocks in the circumferential direction. The shell is connected with a support plate in the circumferential direction in a sliding manner. Each side of the support plate close to the shell is connected with a second inclined block. The inclined surfaces of the first inclined blocks and the second inclined blocks are in contact.

[0009] More preferably, the clamping assembly further comprises rubber pads, and the side of the support plate away from the shell is connected with the rubber pads.

[0010] More preferably, the clamping assembly further comprises first elastic members, and the support plate and the shell are connected with the first elastic members.

[0011] More preferably, the clamping assembly further comprises third inclined blocks, connecting rods, fixing discs, fixing frames, stop blocks and second elastic members, and the side of the shell away from the first hydraulic cylinder is connected with at least three third inclined blocks, the fixing block is connected with at least three third connecting rods, the third connecting rods are extended from the shell, the end of the third connecting rod away from the shell is connected with the same fixing disc, the fixing disc is connected with at least three fixing frames in the circumferential direction, the fixing frame is slidably connected with the stop block, and the second elastic member is connected between the stop block and the fixing frame.

[0012] More preferably, the clamping assembly further comprises hook blocks, and the side of the stop block away from the fixing disc is slidably connected with the hook block.

[0013] More preferably, the clamping assembly further comprises third elastic members, and the hook block and the stop block are connected with the third elastic members.

[0014] More preferably, the clamping assembly further comprises a second hydraulic cylinder, a supporting block and a convex block, the bracket is connected with the second hydraulic cylinder, the piston rod of the second hydraulic cylinder is connected with the supporting block, the rotating shaft is connected with two convex blocks in the circumferential direction, and the supporting block is in contact with the convex block.

[0015] Compared with the prior art, the utility model has the advantages that the utility model discloses linear guide rails, counterweights and attitude sensors, the rotating angle of the mounting seat is monitored through the attitude sensor, when the attitude of the mounting seat is inclined, the counterweight is driven to move along the linear guide rail through the slider on the linear guide rail, thereby the position of the counterweight can be adjusted to adjust the gravity center of the mounting seat, so that the inclined attitude of the mounting seat is corrected, the overturning moment of the mounting seat is accurately offset through the lever principle, and the energy consumption and abrasion of the rotating assembly are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is the shell cross section structure schematic diagram of the utility model.

[0018] Figure 3 It is the fixing frame and hook block cross section structure schematic diagram of the utility model.

[0019] Figure 4 It is the mounting seat cross section structure schematic diagram of the utility model.

[0020] Figure 5 The second hydraulic cylinder and the supporting block structure schematic view of the utility model.

[0021] The marks of each component in the drawing are as follows: 1- support, 2- rotating assembly, 3- rotating shaft, 4- mounting seat, 41- attitude sensor, 5- mounting ring, 6- linear guide rail, 7- counterweight, 8- first hydraulic cylinder, 9- shell, 10- fixed block, 11- first inclined block, 12- second inclined block, 13- first elastic member, 14- supporting plate, 141- rubber pad, 15- third inclined block, 16- connecting rod, 17- fixed disc, 18- fixed frame, 19- stop block, 20- second elastic member, 21- hook block, 22- third elastic member, 23- second hydraulic cylinder, 24- supporting block, 25- protruding block. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] An adjustable counterweight device for propeller overturning balance, as shown in Figures 1-5 The utility model discloses a kind of adjustable counterweight devices for propeller overturning balance, as shown in Fig. 1, including support 1, rotating assembly 2, rotating shaft 3, mounting seat 4, attitude sensor 41, mounting ring 5, linear guide rail 6, counterweight 7, first hydraulic cylinder 8, shell 9, fixed block 10, clamping assembly, second hydraulic cylinder 23, supporting block 24 and protruding block 25, the number of support 1 is two, rotating assembly 2 is connected on support 1, rotating shaft 3 is fixedly connected on rotating assembly 2, rotating shaft 3 is fixedly connected with same mounting seat 4 on the end of mutual approach, mounting seat 4 bottom is fixedly connected with attitude sensor 41, attitude sensor 41 is connected with the controller signal of linear guide rail 6, mounting seat 4 top is fixedly connected with mounting ring 5, the top outer wall of mounting ring 5 top is higher than top inner wall, rotating shaft 3 is fixedly connected with double slider linear guide rail 6, the slider of linear guide rail 6 is fixedly connected with counterweight 7, rotating shaft 3 is located at the center of gravity of linear guide rail 6, first hydraulic cylinder 8 is fixedly connected in mounting seat 4, the cylinder barrel of first hydraulic cylinder 8 is fixedly connected with shell 9, the piston rod of first hydraulic cylinder 8 extends into shell 9, the piston rod of first hydraulic cylinder 8 is fixedly connected with fixed block 10, clamping assembly is connected between shell 9 and fixed block 10, second hydraulic cylinder 23 is fixedly connected on support 1, the piston rod of second hydraulic cylinder 23 is fixedly connected with supporting block 24, two protruding blocks 25 are fixedly connected along the circumference symmetry on rotating shaft 3, supporting block 24 is in contact with protruding block 25.

[0024] AsFigure 2 and Figure 3 As shown in the figure, the clamping assembly comprises first inclined blocks 11, second inclined blocks 12, support plates 14, rubber pads 141, first elastic members 13, third inclined blocks 15, connecting rods 16, fixed discs 17, fixed frames 18, stop blocks 19, second elastic members 20, hook blocks 21 and third elastic members 22, three first inclined blocks 11 are fixedly connected to the fixed block 10 in the circumferential direction, the support plates 14 are slidingly connected to the shell 9 in the circumferential direction at intervals, the second inclined blocks 12 are fixedly connected to the side of the support plate 14 close to the shell 9, the inclined surfaces of the first inclined blocks 11 and the second inclined blocks 12 are in contact, the rubber pads 141 are fixedly connected to the side of the support plate 14 away from the shell 9, the rubber pads 141 can increase the friction between the support plate 14 and the propeller, the first elastic members 13 are fixedly connected between the support plate 14 and the shell 9, three third inclined blocks 15 are fixedly connected to the side of the shell 9 away from the first hydraulic cylinder 8, three third connecting rods 16 are fixedly connected to the fixed block 10, the third connecting rods 16 extend out of the shell 9, the same fixed disc 17 is fixedly connected to the end of the third connecting rod 16 away from the shell 9, three fixed frames 18 are fixedly connected to the fixed disc 17 in the circumferential direction at intervals, the stop blocks 19 are slidingly connected in the fixed frames 18, the second elastic members 20 are fixedly connected between the stop blocks 19 and the fixed frames 18, the hook blocks 21 are slidingly connected to the side of the stop blocks 19 away from the fixed disc 17, the third elastic members 22 are fixedly connected between the hook blocks 21 and the stop blocks 19, the first elastic members 13, the second elastic members 20 and the third elastic members 22 are all spiral springs.

[0025] At the beginning, the first hydraulic cylinder 8 is in the elongated state, and when the propeller needs to be fixed on the counterweight device, the rotating assembly 2 is first driven to rotate the rotating shaft 3 to rotate the mounting seat 4 by 180 degrees, so that the mounting ring 5 is close to the ground. The propeller is moved to the lower side of the mounting seat 4 by the external conveying device, the propeller hub is aligned with the fixing disc 17, the propeller is moved upward by the external conveying device, the propeller is clamped into the mounting ring 5, the clamping device is located in the propeller hub, and then the first hydraulic cylinder 8 drives the fixing block 10 to move away from the fixing disc 17. The inclined surface of the first inclined block 11 extrudes the inclined surface of the second inclined block 12, so that the support plates 14 are all slid away from the shell 9, and the first elastic member 13 is stretched. Thus, the support plates 14 extrude the inner wall of the propeller hub, the clamping assembly is clamped and fixed to the propeller hub, the uniform force is applied to the inner wall of the propeller hub, unnecessary damage or deformation of the inner wall of the propeller hub is avoided, and the propeller is also prevented from being blocked, so that the propeller is convenient to maintain and repair. When the fixing block 10 moves away from the fixing disc 17, the fixing block 10 drives the fixing disc 17 to move close to the shell 9 through the connecting rod 16, the inclined surface of the third inclined block 15 extrudes the stop block 19, so that the stop block 19 is all slid away from the fixed frame 18, the second elastic member 20 is stretched, and the stop block 19 blocks the propeller hub. In the sliding process of the stop block 19, the propeller hub extrudes the hook block 21, so that the third elastic member 22 is compressed. When the hook block 21 moves away from the propeller hub, the third elastic member 22 restores to its original state and makes the hook block 21 slide away from the stop block 19. The hook block 21 hooks the outer wall of the propeller hub, and under the joint action of the stop block 19 and the hook block 21, the propeller hub can be prevented from sliding or loosening accidentally during operation, the risk of injury to personnel and equipment is reduced, and the safety is improved. Thus, the propeller is fixed on the counterweight device, the external conveying device is removed, the rotating angle of the mounting seat 4 is monitored by the attitude sensor 41, and when the attitude of the mounting seat 4 is inclined, the counterweight block 7 is driven to move along the linear guide rail 6 through the slider on the linear guide rail 6. Thus, the position of the counterweight block 7 can be adjusted to adjust the center of gravity of the mounting seat 4, so as to correct the inclined attitude of the mounting seat 4. The overturning moment of the mounting seat 4 is accurately offset by using the lever principle, the energy consumption and wear of the rotating assembly 2 are reduced, the propeller needs to be turned over for maintenance, the rotating shaft 3 is reversed by 180 degrees through the rotating assembly 2, and then the propeller is kept balanced through the joint action of the attitude sensor 41 and the counterweight block 7, so as to avoid the swinging caused by the unstable center of gravity of the mounting seat 4 after stopping, and the falling risk of the propeller is reduced. The lug 24 is contacted by moving the lug 24 upward through the second hydraulic cylinder 23, so as to lock the rotating shaft 3 and keep the rotating shaft 3 in a stable attitude, and the stability of the counterweight device is further improved. When the mounting seat 4 needs to be rotated again, the lug 24 is moved downward away from the rotating shaft 3 through the second hydraulic cylinder 23, and when the propeller needs to be removed, the fixing block 10 is reset through the first hydraulic cylinder 8, and the first elastic member 13 and the second elastic member 20 are restored to their original states.The support plate 14 and the stopper 19 are both reset, thereby releasing the fixation of the clamping assembly.

[0026] While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the disclosure should not be limited to the above-described embodiments, but should be defined by the appended claims and equivalents thereof.

Claims

1. An adjustable counterweight device for propeller spin balance, characterized by, Include: Support (1), the number of support (1) is two, the support (1) is connected with rotating assembly (2), rotating assembly (2) is connected with rotating shaft (3), rotating shaft (3) is connected with the same mounting seat (4) on the end of each other, the mounting seat (4) bottom is connected with posture sensor (41); Mounting ring (5), the mounting ring (5) is connected with the mounting seat (4), the rotating shaft (3) is connected with double sliding block type linear guide (6), the slider of linear guide (6) is connected with counterweight (7), the posture sensor (41) is connected with the controller signal of linear guide (6); The first hydraulic cylinder (8) is connected with the first hydraulic cylinder (8) in the mounting seat (4), the cylinder of the first hydraulic cylinder (8) is connected with the shell (9), the piston rod of the first hydraulic cylinder (8) extends into the shell (9), the piston rod of the first hydraulic cylinder (8) is connected with the fixed block (10), the shell (9) and the fixed block (10) are connected with the clamping assembly.

2. The adjustable counterweight device for propeller roll balance according to claim 1, wherein: The rotating shaft (3) is located at the center of gravity of the linear guide (6).

3. The adjustable counterweight device for propeller roll balance according to claim 2, wherein: The top of the mounting ring (5) is inclined, and the outer wall of the top of the mounting ring (5) is higher than the inner wall of the top.

4. An adjustable counterweight device for propeller spin balance according to claim 3, wherein The clamping assembly comprises: First inclined block (11), at least three first inclined blocks (11) are connected with the fixed block (10) in the circumferential direction, the shell (9) is connected with the support plate (14) in the circumferential direction, the side of the support plate (14) close to the shell (9) is connected with the second inclined block (12), and the inclined surface of the first inclined block (11) is in contact with the second inclined block (12).

5. An adjustable counterweight device for propeller spin balance according to claim 4, wherein The clamping assembly further comprises: Rubber pad (141), the side of the support plate (14) away from the shell (9) is connected with the rubber pad (141).

6. An adjustable counterweight device for propeller spin balance according to claim 5, wherein The clamping assembly further comprises: First elastic member (13), the first elastic member (13) is connected between the support plate (14) and the shell (9).

7. An adjustable counterweight device for propeller spin balance according to claim 6, wherein The clamping assembly further comprises: Third inclined block (15), at least three third inclined blocks (15) are connected with the side of the shell (9) away from the first hydraulic cylinder (8), at least three third connecting rods (16) are connected with the fixed block (10), the third connecting rods (16) extend out of the shell (9), the same fixed disc (17) is connected with the end of the third connecting rod (16) away from the shell (9), at least three fixed frames (18) are connected with the fixed disc (17) in the circumferential direction, the stop block (19) is slidably connected in the fixed frame (18), and the second elastic member (20) is connected between the stop block (19) and the fixed frame (18).

8. An adjustable counterweight device for propeller spin balance according to claim 7, wherein The clamping assembly further comprises: A hook block (21) is slidably connected to the side of the stop block (19) away from the fixed disc (17).

9. An adjustable counterweight device for propeller spin balance according to claim 8, wherein, The clamping assembly further comprises: A third elastic member (22) is connected between the hook block (21) and the stop block (19).

10. An adjustable counterweight device for propeller spin balance according to claim 9, wherein, Further comprising: A second hydraulic cylinder (23) is connected to the support (1), and a piston rod of the second hydraulic cylinder (23) is connected with a supporting block (24). Two convex blocks (25) are connected to the rotating shaft (3) in the circumferential direction. The supporting block (24) is in contact with the convex block (25).

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