Ship hydraulic steering engine transmission pull rod device

Abstract

The invention relates to the technical field of steering engines, and discloses a ship hydraulic steering engine transmission pull rod device which comprises a shell, a fixed pull rod, a movable pull rod, a displacement adjusting assembly and a vibration reduction assembly, the displacement adjusting assembly comprises a plurality of two-connecting-rod assemblies and a driving assembly, and the two ends of each two-connecting-rod assembly are connected with the fixed pull rod and the movable pull rod correspondingly; the driving assembly is used for adjusting the included angle of the two-connecting-rod assembly to drive the movable pull rod to move. The vibration reduction assembly comprises a damper, a connecting frame and an angle adjusting assembly, one end of the damper is connected with the movable pull rod, the connecting frame is in sliding connection with the multiple two-connecting-rod assemblies, and the angle adjusting assembly is connected with the other end of the damper. According to the steering engine transmission pull rod device, the distance between the movable pull rod and the fixed pull rod can be adjusted, the length of the steering engine transmission pull rod device can be adjusted, the angle of the damper can be adjusted, and therefore the steering engine transmission pull rod device can meet the vibration reduction requirements under various working conditions, and the steering engine transmission pull rod device can be better protected.

Description

Technical Field

[0001] The present invention relates to the technical field of steering gears, and more specifically, it relates to a transmission tie rod device for a marine hydraulic steering gear. Background Art

[0002] A hydraulic steering gear is a device that uses hydraulic oil as the working medium and can steer a ship and maintain the rudder position. According to different power sources, it can be divided into manual, electric, and electro-hydraulic steering gears. The electro-hydraulic steering gear is reliable in operation, convenient to operate, light and durable, high in economy, and convenient for maintenance and management, and is an ideal steering device for ships; in the use of a hydraulic steering gear, each component on the steering gear needs to be linked through a transmission tie rod, and the transmission tie rod is an important action execution component.

[0003] The length of the existing steering gear transmission tie rod is difficult to adjust or the adjustment is troublesome. Since transmission tie rods of different lengths are usually required at different connection positions, the fixed-length steering gear transmission tie rod is difficult to adapt to different usage requirements at different positions, and the existing steering gear transmission tie rod usually needs to bear impact force and is prone to damage. Summary of the Invention

[0004] The present invention provides a transmission tie rod device for a marine hydraulic steering gear, which solves the technical problems in the related art that the length of the transmission tie rod is difficult to adjust or the adjustment is troublesome, and the transmission tie rod is prone to damage.

[0005] The present invention provides a transmission tie rod device for a marine hydraulic steering gear, including a housing, which is a structure with a hollow interior and openings at both ends; a fixed tie rod, which is arranged inside the housing, and one end of which extends out from the opening on one side of the housing; a movable tie rod, which is movably arranged inside the housing, and one end of which extends out from the opening on the other side of the housing; a displacement adjustment component, which includes: a plurality of two-link components and a driving component, both ends of the two-link component are respectively connected to the fixed tie rod and the movable tie rod, and the driving component is used to adjust the included angle of the two-link component to drive the movable tie rod to move; a vibration damping component, which is arranged inside the housing, and includes: a damper, a connecting frame and an angle adjustment component, one end of the damper is connected to the movable tie rod, the connecting frame is slidably connected to the plurality of two-link components, and the angle adjustment component is arranged on the connecting frame and connected to the other end of the damper to adjust the tilt angle of the damper.

[0006] As a further improvement of the present invention, the housing is a rotary body structure, both the fixed tie rod and the movable tie rod are provided with a cylindrical structure, the axis of the fixed tie rod is collinear with the axis of the movable tie rod, and the diameter dimension of the cylindrical structure of the fixed tie rod is the same as the diameter dimension of the opening on one side of the housing, and the diameter dimension of the cylindrical structure of the movable tie rod is the same as the diameter dimension of the opening on the other side of the housing.

[0007] As a further improvement of the present invention, the driving assembly includes: a plurality of driving rods, a cylindrical fixed seat concentric with the housing, a cylindrical rotating seat concentric with the housing, and a power assembly. The plurality of driving rods correspond to the plurality of two-link assemblies one by one. One end of the driving rod is connected to the corresponding two-link assembly. The rotating seat is rotatably connected to the fixed seat. A plurality of connecting plates connected to the inner wall of the housing are fixedly connected to the circumferential wall of the fixed seat. A plurality of guiding grooves with a length direction along its radial direction are annularly arranged on the fixed seat with respect to its axis. A plurality of arc-shaped grooves are annularly arranged on the rotating seat with respect to its axis. One side of the arc-shaped groove is close to the center of the rotating seat, and the other side is close to the edge of the rotating seat. The plurality of arc-shaped grooves correspond to the plurality of guiding grooves and the plurality of driving rods one by one. The other end of the driving rod passes through the corresponding arc-shaped groove and is slidably connected to the corresponding guiding groove. The power assembly is used to drive the rotating seat to rotate.

[0008] As a further improvement of the present invention, the two-link assembly includes: a first link, a second link, and a hinge plate. Two ends of the first link are respectively rotatably connected to the other end of the fixed pull rod and the hinge plate. Two ends of the second link are respectively rotatably connected to the other end of the movable pull rod and the hinge plate. And one end of the driving rod is connected to the hinge plate.

[0009] As a further improvement of the present invention, the plurality of two-link assemblies are annularly arranged and distributed with respect to the axis of the fixed pull rod.

[0010] As a further improvement of the present invention, the power assembly includes: a gear ring, an L-shaped mounting plate, and two mounting seats. The gear ring is fixedly connected to the outer peripheral wall of the rotating seat. The mounting plate and the two mounting seats are both fixedly connected to the same connecting plate. A transmission shaft is rotatably connected between the mounting plate and the corresponding connecting plate. A worm gear and a first gear engaged with the gear ring are fixedly connected to the transmission shaft. A worm engaged with the worm gear is rotatably connected between the two mounting seats. One end of the worm extends to the outside of the housing.

[0011] As a further improvement of the present invention, the connecting frame includes: a connecting seat with a tubular structure and a plurality of sliding rods. The plurality of sliding rods are all fixedly connected to the outer peripheral wall of the connecting seat and correspond to the plurality of second links one by one. A moving hole is formed in the sliding rod along its length direction. A moving rod is fixedly connected to the second link. The moving rod is slidably connected in the corresponding moving hole.

[0012] As a further improvement of the present invention, the angle adjustment assembly includes: a screw rod, a connecting block and a knob. One end of the screw rod is rotatably connected to the inner wall of the connecting seat, the other end of the screw rod passes through the connecting seat along the radial direction of the connecting seat and is fixedly connected to the knob, the connecting block is threadedly connected to the screw rod, and the other end of the damper is rotatably connected to the connecting block.

[0013] As a further improvement of the present invention, guide plates are symmetrically arranged on the connecting seat along its radial direction, a guide rod with an axis parallel to the axis of the screw rod is fixedly connected between the two guide plates, and the connecting block is slidably connected to the guide rod.

[0014] As a further improvement of the present invention, the hydraulic steering gear transmission pull rod device further includes: an annular fixing plate, the inner wall of the fixing plate is fixedly connected to a plurality of the connecting plates, and the outer wall of the fixing plate is fixedly connected to the inner wall of the housing.

[0015] The beneficial effects of the present invention are as follows: 1. By arranging a fixed pull rod and a movable pull rod inside the housing, connecting the fixed pull rod and the movable pull rod through a plurality of two-link components, and then using the driving assembly to adjust the angle between the first link and the second link in the two-link, the distance between the movable pull rod and the fixed pull rod can be adjusted, so as to realize the adjustment of the length of the steering gear transmission pull rod device. Moreover, the setting of the two-link component makes the connection between the fixed pull rod and the movable pull rod more reliable and stable. In addition, the angle of the damper can be adjusted through the angle adjustment assembly, so as to be applicable to the vibration reduction requirements under various working conditions, better protect the steering gear transmission pull rod device, and be more flexible to use.

[0016] 2. The cooperation of the worm and the worm gear is used to drive the driving rod to move, so that the movement of the driving rod can be limited by using the self-locking principle of the worm and the worm gear, so that the movement of the driving rod is more reliable and stable. Moreover, one end of the worm extends to the outside of the housing, so that we can adjust the length of the steering gear transmission pull rod device from the outside of the housing, which is more convenient to use. Description of the Drawings

[0017] Figure 1 is the three-dimensional structural schematic diagram of the hydraulic steering gear transmission pull rod of the embodiment of the present invention; Figure 2 is the three-dimensional sectional structural schematic diagram of the hydraulic steering gear transmission pull rod of the embodiment of the present invention; Figure 3 is Figure 2 the enlarged view of part A in Figure 4 is Figure 2 the enlarged view of part B in Figure 5 is a schematic front sectional view of the transmission tie rod of the hydraulic steering gear according to an embodiment of the present invention; Figure 6 is a first schematic top view of the transmission tie rod of the hydraulic steering gear according to an embodiment of the present invention; Figure 7 is a second schematic top view of the transmission tie rod of the hydraulic steering gear according to an embodiment of the present invention; Figure 8 is a third schematic top view of the transmission tie rod of the hydraulic steering gear according to an embodiment of the present invention; Figure 9 is a fourth schematic top view of the transmission tie rod of the hydraulic steering gear according to an embodiment of the present invention.

[0018] In the figure: 1, housing; 2, fixed tie rod; 3, movable tie rod; 4, displacement adjustment assembly; 41, two-link assembly; 411, first link; 412, second link; 4121, moving rod; 413, hinge plate; 42, driving rod; 43, driving assembly; 431, fixed seat; 4311, connecting plate; 4312, guiding groove; 432, rotating seat; 4321, arc groove; 433, power assembly; 4331, gear ring; 4332, mounting plate; 4333, mounting seat; 4334, transmission shaft; 4335, worm gear; 4336, worm; 4337, first gear; 5, vibration damping assembly; 51, damper; 52, connecting frame; 521, connecting seat; 522, sliding rod; 5221, moving hole; 53, angle adjustment assembly; 531, screw; 532, connecting block; 533, knob; 6, guiding plate; 7, guiding rod; 8, fixing plate. Detailed implementation manners

[0019] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0020] As Figures 1-9As shown in the figure, a hydraulic steering gear drive tie rod device for a ship includes a housing 1, a fixed tie rod 2, a movable tie rod 3, a displacement adjustment assembly 4, and a vibration damping assembly 5. Among them, the housing 1 mainly functions to install and support, and can also isolate the internal environment from the external environment to play a protective role. The fixed tie rod 2 mainly functions to connect and transmit. The movable tie rod 3 also mainly functions to connect and transmit, and the length of the steering gear drive tie rod device can be adjusted by the movement of the movable tie rod 3. The displacement adjustment assembly 4 is mainly used to adjust the distance between the movable tie rod 3 and the fixed tie rod 2, so as to adjust the length of the steering gear drive tie rod device. The vibration damping assembly 5 mainly functions to absorb vibration, so as to protect the entire steering gear drive tie rod device.

[0021] Specifically, as Figure 1 and Figure 2 shown, the housing 1 can be a rotating body structure with a hollow interior and openings at both ends. Setting the housing 1 as a hollow structure facilitates the installation of components inside the housing 1. Designing the housing 1 as a rotating body structure can make the force on the housing 1 more uniform and the integrity better. It should be noted that the housing 1 can also be divided into two identical symmetrical components along its axis direction, which is convenient for installing the components inside it.

[0022] In addition, as Figure 2 and Figure 5 shown, the fixed tie rod 2 is fixedly connected inside the housing 1, and one end of it extends out from the opening on one side of the housing 1. That is to say, one end of the fixed tie rod 2 extends outside the opening on one side of the housing 1, and the other end of the fixed tie rod 2 is fixedly connected inside the housing 1. Extending one end of the fixed tie rod 2 outside the housing 1 facilitates the connection of the fixed tie rod 2 with the corresponding external components. Fixing the other end of the fixed tie rod 2 inside the housing 1 can make the connection between the fixed tie rod 2 and the housing 1 more stable and reliable, so that the fixed tie rod 2 can better play the role of connection and transmission.

[0023] Furthermore, as Figure 2 and Figure 5 shown, the movable tie rod 3 is movably arranged inside the housing 1, and one end of it extends out from the opening on the other side of the housing 1. That is to say, one end of the movable tie rod 3 extends outside the opening on the other side of the housing 1, the other end of the movable tie rod 3 is arranged inside the housing 1, and the movable tie rod 3 can move relative to the housing 1. Extending one end of the movable tie rod 3 outside the housing 1 facilitates the connection of the movable tie rod 3 with the corresponding external components. Movably arranging the other end of the movable tie rod 3 inside the housing 1 can adjust the position of the movable tie rod 3 inside the housing 1, thereby reducing the interference with the external environment and making it more convenient and reasonable to use.

[0024] Furthermore, as Figure 2 and Figure 5 shown, both the fixed pull rod 2 and the movable pull rod 3 are provided with cylindrical structures. It should be noted that the main bodies of the fixed pull rod 2 and the movable pull rod 3 are cylindrical structures, and connecting rings are provided at one end of the fixed pull rod 2 and one end of the movable pull rod 3, mainly for facilitating connection with corresponding mating components.

[0025] The axis of the fixed pull rod 2 is collinear with the axis of the movable pull rod 3, that is, the axis of the cylindrical part of the fixed pull rod 2 is collinear with the axis of the cylindrical part of the movable pull rod 3. That is to say, the cylindrical parts of the fixed pull rod 2 and the movable pull rod 3 are arranged concentrically. Since one end of the fixed pull rod 2 and one end of the movable pull rod 3 are respectively connected to corresponding components, during the process of the steering gear transmission pull rod device being compressed or stretched, the forces on the fixed pull rod 2 and the movable pull rod 3 are on the same axis, so that the force transmission can be better carried out, which is beneficial to extending the service life of the steering gear transmission pull rod device. And during the transmission process, the concentric arrangement of the fixed pull rod 2 and the movable pull rod 3 can also reduce vibration and noise to a certain extent.

[0026] In addition, the diameter size of the cylindrical structure of the fixed pull rod 2 is the same as the diameter size of the opening on one side of the housing 1, and the diameter size of the cylindrical structure of the movable pull rod 3 is the same as the diameter size of the opening on the other side of the housing 1. This can improve the sealing performance between the fixed pull rod 2 and the movable pull rod 3 and the housing 1.

[0027] In addition, as Figure 2 , Figure 3 , Figure 5 and Figure 6 shown, the displacement adjustment assembly 4 is arranged inside the housing 1, and it includes: a plurality of two-link assemblies 41 and a driving assembly 43. Both ends of the plurality of two-link assemblies 41 are respectively connected to the other end of the fixed pull rod 2 and the other end of the movable pull rod 3. It should be noted that the cross-sectional shapes of the fixed pull rod 2 and the movable pull rod 3 along the radial direction of the housing 1 are both T-shaped structures, and the sides with larger diameters are both located inside the housing 1, so that the connection area between the fixed pull rod 2 and the movable pull rod 3 and the two-link assemblies 41 can be increased, thus facilitating the connection of both ends of the two-link assemblies 41 to the fixed pull rod 2 and the movable pull rod 3 respectively.

[0028] The two-link assembly 41 mainly plays a role in transmission. The two-link assembly 41 includes a first link 411, a second link 412 and a hinge plate 413. The two ends of the first link 411 are respectively rotatably connected to the other end of the fixed pull rod 2 and the hinge plate 413, and the two ends of the second link 412 are respectively rotatably connected to the other end of the movable pull rod 3 and the hinge plate 413. In this way, the angle between the first link 411 and the second link 412 can be controlled by pushing the hinge plate 413. For example, when the hinge plate 413 is pushed to move outside the housing 1, the angle between the inner sides of the first link 411 and the second link 412 will decrease, so that the second link 412 will pull the movable pull rod 3 to move inside the housing 1, and further the length of the steering gear transmission pull rod device can be reduced. On the contrary, the length of the steering gear transmission pull rod device can be increased, so that the length use requirements of the steering gear transmission pull rod device for various working conditions can be met, and the use is more flexible.

[0029] The drive assembly 43 is used to push the hinge plate 413 to move to adjust the angle of the two-link assembly 41, so as to drive the movable pull rod 3 to move.

[0030] Specifically, the drive assembly 43 includes a plurality of drive rods 42, a cylindrical fixed seat 431 concentric with the housing 1, a cylindrical rotating seat 432 concentric with the housing 1, and a power assembly 433. The plurality of drive rods 42 correspond to the plurality of two-link assemblies 41 one by one, and one end of the drive rod 42 is connected to the corresponding two-link assembly 41. It should be noted that the number of drive rods 42 and two-link assemblies 41 in this embodiment is four, and one end of each drive rod 42 is connected to the corresponding hinge plate 413, so that the hinge plate 413 can be pushed to move through the drive rod 42, thereby the inclination angle between the first link 411 and the second link 412 can be adjusted, and further the movable pull rod 3 can be driven to move along the axial direction of the housing 1.

[0031] The rotating seat 432 is rotatably connected to the fixed seat 431 concentrically. A plurality of connecting plates 4311 connected to the inner wall of the housing 1 are fixedly connected to the circumferential wall of the fixed seat 431. A plurality of guide grooves 4312 with a length direction along its radial direction are formed in the fixed seat 431 in an annular array about its own axis, that is, the guide grooves 4312 are linear structures along the radial direction of the fixed seat 431. A plurality of arc grooves 4321 are formed in the rotating seat 432 in an annular array about its own axis, and the arc grooves 4321 are arc structures. One side of the arc groove 4321 is close to the center of the rotating seat 432, and the other side is close to the edge of the rotating seat 432. The plurality of arc grooves 4321 correspond to the plurality of guide grooves 4312 and the plurality of drive rods 42 one by one, that is to say, the number of guide grooves 4312 and arc grooves 4321 in this embodiment is also four. The other end of the drive rod 42 passes through the corresponding arc groove 4321 and is slidably connected to the corresponding guide groove 4312, and the power assembly 433 is used to drive the rotating seat 432 to rotate.

[0032] It should be noted that, as Figure 5 shown, the structure of the driving rod 42 can be an L-shaped structure. One end of the driving rod 42 is connected to the hinge plate 413, and the other end passes through the corresponding arc-shaped groove 4321 and is slidably connected to the corresponding guide groove 4312. Moreover, the width dimension of the other end of the driving rod 42 passing through the arc-shaped groove 4321 is the same as the width dimension of the arc-shaped groove 4321. In this way, when the arc-shaped groove 4321 rotates around the axis of the rotating seat 432, the arc-shaped groove 4321 can timely drive the driving rod 42 to move along the length direction of the corresponding guide groove 4312. Furthermore, the driving rod 42 can adjust the angle between the first connecting rod 411 and the second connecting rod 412 by pushing the movement of the hinge plate 413, and then can adjust the position of the movable pull rod 3 to realize the adjustment of the length of the steering gear transmission pull rod device.

[0033] Specifically, the power assembly 433 includes a gear ring 4331, an L-shaped mounting plate 4332 and two mounting seats 4333. The gear ring 4331 is fixedly connected to the outer peripheral wall of the rotating seat 432. The mounting plate 4332 and the two mounting seats 4333 are both fixedly connected to the same connecting plate 4311. A transmission shaft 4334 is rotatably connected between the mounting plate 4332 and the corresponding connecting plate 4311. The axis of the transmission shaft 4334 is parallel to the axis of the fixed seat 431. A worm gear 4335 and a first gear 4337 that cooperates with the gear ring 4331 are fixedly connected to the transmission shaft 4334. A worm 4336 that cooperates with the worm gear 4335 is rotatably connected between the two mounting seats 4333. One end of the worm 4336 extends to the outside of the housing 1. Among them, the axis of the worm 4336 is perpendicular to the axis of the transmission shaft 4334. Extending one end of the worm 4336 to the outside of the housing 1 can directly adjust the length of the movable pull rod 3 outside the housing 1, making it more convenient to use.

[0034] During use, when it is necessary to adjust the position of the movable pull rod 3, rotate the worm 4336. The rotation of the worm 4336 can drive the transmission shaft 4334 to rotate through the cooperation with the worm gear 4335. The rotation of the transmission shaft 4334 can further drive the first gear 4337 to rotate. The rotation of the first gear 4337 can drive the rotating seat 432 to rotate through the cooperation with the gear ring 4331, and then drive the arc-shaped groove 4321 to rotate. Since the other ends of the four driving rods 42 all pass through the corresponding arc-shaped grooves 4321, the four driving rods 42 will move outward or inward along the length direction of the guide groove 4312 according to the rotation direction of the arc-shaped groove 4321, so as to adjust the angle between the first connecting rod 411 and the second connecting rod 412, and then adjust the position of the movable pull rod 3 to realize the adjustment of the length of the steering gear transmission pull rod device.

[0035] As an alternative embodiment, in order to avoid interference between the worm 4336 and the external environment, the end of the worm 4336 that extends out can be made flush with the outer wall of the housing 1, and a cross slot is provided on the end face of the extending end of the worm 4336, so that the rotation of the worm 4336 can be controlled by a cross-shaped screwdriver.

[0036] As an alternative embodiment, a plurality of two-link assemblies 41 are distributed in a circular array about the axis of the fixed pull rod 2. This can make the distribution between the plurality of two-link assemblies 41 more uniform and comprehensive, so that the transmission between the movable pull rod 3 and the fixed pull rod 2 can be more uniform and not easily damaged, and the steering gear transmission pull rod device can better play the role of transmission and connection.

[0037] In addition, as shown in Figure 2 , Figure 4 and Figure 9 , a vibration damping assembly 5 is arranged inside the housing 1. The vibration damping assembly 5 includes a damper 51, a connecting frame 52 and an angle adjusting assembly 53. One end of the damper 51 is rotatably connected to the other end of the movable pull rod 3. The connecting frame 52 is slidably connected to the plurality of two-link assemblies 41. The angle adjusting assembly 53 is arranged on the connecting frame 52 and connected to the other end of the damper 51 for adjusting the inclination angle of the damper 51. Among them, the damper 51 mainly plays a role in vibration damping. The connecting frame 52 mainly plays a role in connection and support. Specifically, the connecting frame 52 includes: a connecting seat 521 with a tubular structure and a plurality of sliding rods 522, that is, the connecting seat 521 is a hollow structure, the connecting seat 521 is concentrically arranged with the housing 1, and the plurality of sliding rods 522 are all fixedly connected to the outer peripheral wall of the connecting seat 521 and correspond to the plurality of second link rods 412 one by one, that is, the number of the sliding rods 522 is also four. A moving hole 5221 is provided along the length direction of the sliding rod 522. The moving hole 5221 can be a strip-shaped structure. A moving rod 4121 is fixedly connected to the second link rod 412, and the moving rod 4121 is slidably connected in the corresponding moving hole 5221. The cooperation between the moving hole 5221 and the moving rod 4121 is mainly to realize the connection between the connecting frame 52 and the second link rod 412, and can reduce the interference between the two-link assembly 41 and the connecting frame 52 during operation, so that the two-link assembly 41 can normally drive the movable pull rod 3 to move.

[0038] During use, since one end of the damper 51 is rotatably connected to the other end of the movable pull rod 3, the other end of the damper 51 is connected to the connecting frame 52 through the angle adjustment assembly 53. The connecting frame 52 can be connected to the second connecting rod 412 through the cooperation of the moving hole 5221 and the moving rod 4121. In this way, when the movable pull rod 3 is stressed or moves, the damper 51 can absorb the vibration on the movable pull rod 3 and the two-link assembly 41, thereby maintaining the relative stability of the movable pull rod 3, protecting the movable pull rod 3, and extending the service life of the steering gear transmission pull rod device.

[0039] In addition, as Figure 4 and Figure 9 shown, the inclination angle of the damper 51 can be adjusted through the angle adjustment assembly 53, so that the damper 51 can be applied to a variety of load conditions, thereby achieving a better vibration reduction effect. Specifically, the angle adjustment assembly 53 includes a screw rod 531, a connecting block 532, and a knob 533. One end of the screw rod 531 is rotatably connected to the inner wall of the connecting seat 521, and the other end of the screw rod 531 passes through the connecting seat 521 along the radial direction of the connecting seat 521 and is fixedly connected to the knob 533. The connecting block 532 is threadedly connected to the screw rod 531, and the other end of the damper 51 is rotatably connected to the connecting block 532. During use, when the angle of the damper 51 needs to be adjusted, the knob 533 is rotated. The rotation of the knob 533 will drive the screw rod 531 to rotate, and the rotation of the screw rod 531 will drive the connecting block 532 to move along the axis of the screw rod 531. Since one end of the damper 51 is rotatably connected to the movable pull rod 3 and the other end of the damper 51 is rotatably connected to the connecting block 532, the connecting block 532 will drive the damper 51 to tilt when moving, thereby realizing the adjustment of the angle of the damper 51.

[0040] As an alternative embodiment, as Figure 4 shown, guide plates 6 are symmetrically and fixedly connected to the connecting seat 521 along its radial direction. A guide rod 7 with an axis parallel to the axis of the screw rod 531 is fixedly connected between the two guide plates 6. The connecting block 532 is slidably connected to the guide rod 7. Among them, the guide rod 7 mainly plays a guiding role. The connecting block 532 is slidably connected to the guide rod 7, so that the connecting block 532 can be more stable during the moving process, thereby better adjusting the angle of the damper 51.

[0041] As an alternative embodiment, as Figure 6As shown in the figure, the hydraulic steering gear transmission tie rod device further includes: an annular fixing plate 8, the inner wall of the fixing plate 8 is fixedly connected to a plurality of connecting plates 4311, and the outer wall of the fixing plate 8 is fixedly connected to the inner wall of the housing 1. By connecting the plurality of connecting plates 4311 to the fixing plate 8, the plurality of connecting plates 4311 can be made more integral and the structure can be more stable, so that the supporting and fixing functions can be better performed. In addition, by connecting the plurality of connecting plates 4311 to the housing 1 through the fixing plate 8, it is more convenient to use.

[0042] The above describes the embodiments of this embodiment, but this embodiment is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A ship hydraulic steering gear transmission rod device, characterized in that: include: A shell (1) having a hollow interior and open ends; A fixed pull rod (2) is arranged in the housing (1), and one end of the fixed pull rod extends out of an opening on one side of the housing (1); A movable pull rod (3) is movably arranged inside the housing (1), one end of which extends out from an opening on the other side of the housing (1); A displacement adjustment assembly (4), comprising: a plurality of two-link assemblies (41) and a drive assembly (43), wherein the two ends of the two-link assemblies (41) are respectively connected to a fixed pull rod (2) and a movable pull rod (3), and the drive assembly (43) is used to adjust the angle of the two-link assemblies (41) to drive the movable pull rod (3) to move; A vibration reduction assembly (5) is arranged in a housing (1), and comprises: a damper (51), a connecting frame (52) and an angle adjustment assembly (53), wherein one end of the damper (51) is connected to a movable pull rod (3), the connecting frame (52) is slidably connected to a plurality of two-link assemblies (41), and the angle adjustment assembly (53) is arranged on the connecting frame (52) and connected to the other end of the damper (51) to adjust the inclination angle of the damper (51).

2. A ship hydraulic steering gear transmission rod device according to claim 1, characterized in that: The shell (1) is a rotating body structure, and the fixed pull rod (2) and the movable pull rod (3) are both provided with a cylindrical structure. The axis of the fixed pull rod (2) and the axis of the movable pull rod (3) are collinear, and the diameter of the cylindrical structure of the fixed pull rod (2) is the same as the diameter of the opening on one side of the shell (1), and the diameter of the cylindrical structure of the movable pull rod (3) is the same as the diameter of the opening on the other side of the shell (1).

3. A ship hydraulic steering gear transmission rod device according to claim 2, characterized in that: The driving assembly (43) comprises: a plurality of driving rods (42), a cylindrical fixed seat (431) arranged concentrically with the shell (1), a cylindrical rotating seat (432) arranged concentrically with the shell (1), and a power assembly (433), wherein the plurality of driving rods (42) correspond to the plurality of two-link assemblies (41) one by one, one end of the driving rod (42) is connected to the corresponding two-link assemblies (41), the rotating seat (432) is rotatably connected to the fixed seat (431), a plurality of connecting plates (4311) connected to the inner wall of the shell (1) are fixedly connected to the circumferential wall of the fixed seat (431), and the fixed seat (431) is annularly connected to the inner wall of the shell (1) about its axis. The array is provided with a plurality of guide grooves (4312) along its radial direction in the length direction, and the rotating seat (432) is provided with a plurality of arc grooves (4321) in a circular array about its axis, one side of the arc groove (4321) is close to the center of the rotating seat (432), and the other side is close to the edge of the rotating seat (432), and the plurality of arc grooves (4321) correspond to the plurality of guide grooves (4312) and the plurality of driving rods (42) one by one, and the other end of the driving rod (42) passes through the corresponding arc groove (4321) and is slidably connected to the corresponding guide groove (4312), and the power assembly (433) is used to drive the rotating seat (432) to rotate.

4. A ship hydraulic steering gear transmission rod device according to claim 3, characterized in that: The two-link assembly (41) includes: a first link (411), a second link (412) and a hinge plate (413), wherein the two ends of the first link (411) are rotatably connected to the other end of the fixed pull rod (2) and the hinge plate (413), respectively, and the two ends of the second link (412) are rotatably connected to the other end of the movable pull rod (3) and the hinge plate (413), respectively, and one end of the driving rod (42) is connected to the hinge plate (413).

5. A ship hydraulic steering gear transmission rod device according to claim 3, characterized in that: The plurality of two-link assemblies (41) are distributed in a circular array about the axis of the fixed tie rod (2).

6. A ship hydraulic steering gear transmission rod device according to claim 3, characterized in that: The power assembly (433) comprises: a gear ring (4331), an L-shaped mounting plate (4332) and two mounting seats (4333); the gear ring (4331) is fixedly connected to the outer peripheral wall of the rotating seat (432); the mounting plate (4332) and the two mounting seats (4333) are fixedly connected to the same connecting plate (4311); a transmission shaft (4334) is rotatably connected between the mounting plate (4332) and the corresponding connecting plate (4311); a worm wheel (4335) and a first gear (4337) matched with the gear ring (4331) are fixedly connected to the transmission shaft (4334); a worm (4336) matched with the worm wheel (4335) is rotatably connected between the two mounting seats (4333); one end of the worm (4336) extends to the outside of the housing (1).

7. A ship hydraulic steering gear transmission rod device according to claim 3, characterized in that: The connecting frame (52) comprises: a connecting seat (521) of a tubular structure and a plurality of sliding rods (522), wherein the plurality of sliding rods (522) are fixedly connected to the outer peripheral wall of the connecting seat (521) and correspond one-to-one to the plurality of second connecting rods (412), and the sliding rod (522) is provided with a moving hole (5221) along its length direction, and a moving rod (4121) is fixedly connected to the second connecting rod (412), and the moving rod (4121) is slidably connected in the corresponding moving hole (5221).

8. A ship hydraulic steering gear transmission rod device according to claim 7, characterized in that: The angle adjustment assembly (53) comprises: a screw rod (531), a connecting block (532) and a knob (533); one end of the screw rod (531) is rotatably connected to the inner wall of the connecting seat (521); the other end of the screw rod (531) passes through the connecting seat (521) along the radial direction of the connecting seat (521) and is fixedly connected to the knob (533); the connecting block (532) is threadedly connected to the screw rod (531), and the other end of the damper (51) is rotatably connected to the connecting block (532).

9. A ship hydraulic steering gear transmission rod device according to claim 8, characterized in that: The connecting seat (521) is symmetrically provided with guide plates (6) along its radial direction, a guide rod (7) whose axis is parallel to the axis of the screw rod (531) is fixedly connected between the two guide plates (6), and the connecting block (532) is slidably connected to the guide rod (7).

10. A ship hydraulic steering gear transmission rod device according to claim 6, characterized in that: The hydraulic steering gear transmission rod device also includes: an annular fixed plate (8), the inner wall of the fixed plate (8) is fixedly connected to the plurality of connecting plates (4311), and the outer wall of the fixed plate (8) is fixedly connected to the inner wall of the housing (1).

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