Wear-resistant swing seat structure of spool hydraulic steering gear steering device

Abstract

The utility model discloses a kind of wear-resistant swing seat structures of fork type hydraulic rudder engine steering gear device, including swing seat body, two groups of fork are symmetrically arranged on swing seat body, two groups of fork with the swing seat body are detachably connected, and each group of fork can be moved up and down on swing seat body, and locking. Through detachable and height-adjustable fork design, the single-point wear problem of driving column caused by traditional fixed fork is solved. Two groups of symmetrically distributed fork and swing seat body are detachably connected, when driving column and fork groove contact surface appear wear, the installation height of fork can be adjusted, so that driving column and fork groove contact at different positions, thereby evenly distributing wear area. This design not only prolongs the service life of driving column, but also significantly reduces the risk of sudden failure caused by local wear, especially suitable for long-term continuous operation of ship hydraulic rudder engine system.

Description

Technical Field

[0001] This utility model relates to the field of marine hydraulic steering gear, and in particular to a wear-resistant swing seat structure for a fork-type hydraulic steering gear turning device. Background Technology

[0002] As a core steering device in modern ships, the fork-type hydraulic steering gear uses a hydraulic system to drive the swivel seat to rotate, thereby steering the rudder. For example, patent announcement number CN219790506 U discloses a steering device for a fork-type hydraulic steering gear, employing a transmission method where a drive column, a friction-reducing wear-resistant ring, and a fork slot in the swivel seat are connected. When the hydraulic system pushes the connecting hydraulic rod in a linear motion, the drive column fixed to the hydraulic rod will, through the friction-reducing wear-resistant ring contacting the side wall of the fork slot, convert the linear thrust into a tangential force on the fork slot, ultimately driving the swivel seat to rotate around a fixed axis.

[0003] However, this structure has significant drawbacks in practical applications. The constant contact between the drive column and the fork slot leads to severe wear on the drive column, eventually causing it to break down. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a wear-resistant swing seat structure for a fork-type hydraulic steering gear.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wear-resistant swing seat structure for a fork-type hydraulic steering gear includes a swing seat body with two sets of forks symmetrically arranged on the swing seat body. The two sets of forks are detachably connected to the swing seat body, and each set of forks can move up and down on the swing seat body and be locked.

[0007] The above technical solution, through a detachable and height-adjustable shift fork design, solves the problem of single-point wear on the drive column caused by traditional fixed shift forks. Two symmetrically distributed shift forks are detachably connected to the swing seat body. When wear occurs on the contact surface between the drive column and the fork groove, the installation height of the shift forks can be adjusted to allow different positions of the drive column to contact the fork groove, thus evenly distributing the wear area. This design not only extends the service life of the drive column but also significantly reduces the risk of sudden failures caused by localized wear, making it particularly suitable for marine hydraulic steering gear systems operating continuously for extended periods.

[0008] As a preferred embodiment of this utility model, the swing seat body is provided with an X-direction limiting mounting groove and a Y-direction limiting mounting groove, and the shift fork is provided with an X-direction mounting block and a Y-direction mounting block. The X-direction mounting block is disposed in the X-direction limiting mounting groove, and the Y-direction mounting block is disposed in the Y-direction limiting mounting groove. The swing seat body and the shift fork are also connected by locking bolts.

[0009] The above technical solution ensures no axial displacement by embedding the X-axis mounting block into the X-axis groove, and the Y-axis mounting block is inserted into the Y-axis groove to bear the radial load. Together with the locking bolt, a rigid connection is formed, which significantly improves the reliability of the steering device in harsh sea conditions.

[0010] As a preferred embodiment of this invention, a plurality of Y-direction limiting mounting grooves are provided on the swing seat body along the height direction.

[0011] With the above technical solution, the height variation range of the drive column corresponding to each slot allows operators to select the optimal engagement position based on wear monitoring data.

[0012] As a preferred embodiment of this utility model, a positioning hole is further provided on the X-direction limiting mounting groove, and a positioning block that cooperates with the positioning hole is further provided on the X-direction mounting block.

[0013] The above technical solution, through the cooperation of the positioning hole and the positioning block, forms a structure to prevent incorrect installation. This design ensures that the X-direction mounting block can only be inserted in one direction, completely eliminating the risk of 180° reverse installation due to worker error.

[0014] As a preferred embodiment of this invention, a wear-resistant plate is provided on the side wall of the fork groove of the shift fork.

[0015] Through the above technical solution, the wear-resistant plate on the side wall of the fork slot absorbs impact vibration while ensuring wear resistance.

[0016] In summary, this utility model has at least one of the following beneficial technical effects:

[0017] 1. The design of detachable and height-adjustable shift forks solves the problem of single-point wear on the drive column caused by traditional fixed shift forks. Two sets of symmetrically distributed shift forks are detachably connected to the swing seat body. When wear occurs on the contact surface between the drive column and the fork slot, the installation height of the shift forks can be adjusted to allow different positions of the drive column to contact the fork slot, thus evenly distributing the wear area. This design not only extends the service life of the drive column but also significantly reduces the risk of sudden failures caused by localized wear, making it particularly suitable for marine hydraulic steering systems operating continuously for extended periods.

[0018] 2. The X-axis mounting block is embedded in the X-axis groove to ensure no axial displacement, and the Y-axis mounting block is inserted into the Y-axis groove to bear the radial load. Together with the locking bolt, a rigid connection is formed, which significantly improves the reliability of the steering device in harsh sea conditions.

[0019] 3. The positioning holes and positioning blocks work together to form an anti-misinstallation structure. This design uses the principle of mechanical interference to ensure that the X-axis mounting block can only be inserted in one direction, completely eliminating the risk of 180° reverse installation due to worker error. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the wear-resistant swing seat of the fork-type hydraulic steering gear of this utility model.

[0021] Figure 2 This invention relates to the structure of the fork in the wear-resistant swing seat of the fork-type hydraulic steering gear.

[0022] Figure 3 This utility model relates to a wear-resistant swing seat for a fork-type hydraulic steering gear.

[0023] The components in the diagram are: 1. Swing seat body; 2. Shift fork; 3. X-direction limiting mounting groove; 4. Positioning hole; 5. Y-direction limiting mounting groove; 6. First fixing hole; 7. Locking bolt; 8. Drive column; 21. Shift fork body; 22. X-direction mounting block; 23. Positioning block; 24. Y-direction mounting block; 25. Second fixing hole; 26. Wear-resistant plate; 27. Fork groove. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 This utility model will be described in further detail.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, a wear-resistant swing seat structure for a fork-type hydraulic steering gear includes a swing seat body 1, on which two sets of forks 2 are symmetrically arranged, and the two sets of forks 2 are detachably connected to the swing seat body 1.

[0027] The connection structures between the two sets of shift forks 2 and the swing seat body 1 are symmetrical. Taking one of the shift forks 2 and the swing seat body 1 as an example, the following explanation is provided: The swing seat body 1 has one X-direction limiting mounting groove 3 and three sets of Y-direction limiting mounting grooves 5. The X-direction limiting mounting groove 3 is located in the middle of the swing seat body 1. Each set of Y-direction limiting mounting grooves 5 consists of two grooves, distributed on both sides of the X-direction limiting mounting groove 3. The three sets of Y-direction limiting mounting grooves 5 are equidistantly distributed along the height direction of the swing seat body 1.

[0028] The swing seat body 1 is also provided with a first fixing hole 6. There are multiple sets of first fixing holes 6. Each set of first fixing holes 6 includes two first fixing holes 6 set at the same height. Each set of first fixing holes 6 is distributed along the height direction of the swing seat body 1.

[0029] The shift fork 2 includes a shift fork body 21, on which an X-axis mounting block 22 and a Y-axis mounting block 24 are provided. The X-axis mounting block 22 is disposed in the X-axis limiting mounting groove 3, and the Y-axis mounting block 24 is disposed in the Y-axis limiting mounting groove 5. The X-axis mounting block 22 is also provided with a second fixing hole 25 passing through it. When the shift fork 2 is installed with the swing seat body 1, the X-axis mounting block 22 is installed into the X-axis limiting mounting groove 3, and the Y-axis mounting block 24 is installed into the Y-axis limiting mounting groove 5. Then, the locking bolt 7 passes through the first fixing hole 6 and the second fixing hole 25, and is then locked with a nut to complete the installation and fixing of the shift fork 2 with the swing seat body 1. Furthermore, by inserting the Y-axis mounting block 24 into the Y-axis limiting mounting grooves 5 at different heights, the height position of the shift fork 2 on the swing seat body 1 can be adjusted.

[0030] To further enhance the connection strength between the shift fork 2 and the swing seat body 1, and to prevent incorrect installation of the shift fork 2 in either direction, a positioning hole 4 is provided on the X-direction limiting mounting groove 3, and a positioning block 23 that mates with the positioning hole 4 is also provided on the X-direction mounting block 22. When the shift fork 2 is installed with the swing seat body 1, the positioning block 23 is inserted into the positioning hole 4.

[0031] A wear-resistant plate 26 is provided on the side wall of the fork groove 27 of the shift fork 2. The wear-resistant plate 26 is installed on the side wall of the fork groove 27 by screws.

[0032] Reference Figure 3 In this embodiment, the wear-resistant swing seat structure of the fork-type hydraulic steering gear has a drive column 8 of the drive mechanism set in the fork groove 27. After a period of use, by adjusting the height position between the fork 2 and the swing seat body 1, the fork groove 27 and the drive column 8 are made to contact at different heights, which reduces the wear of the drive column 8 and improves the durability of the drive column 8.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A wear-resistant swing seat structure for a fork-type hydraulic steering gear, characterized in that: It includes a swing seat body (1), on which two sets of forks (2) are symmetrically arranged. The two sets of forks (2) are detachably connected to the swing seat body (1), and each set of forks (2) can move up and down on the swing seat body (1) and be locked.

2. The wear-resistant swing seat structure of the fork-type hydraulic steering gear according to claim 1, characterized in that: The swing seat body (1) is provided with an X-direction limiting mounting groove (3) and a Y-direction limiting mounting groove (5). The shift fork (2) is provided with an X-direction mounting block (22) and a Y-direction mounting block (24). The X-direction mounting block (22) is located in the X-direction limiting mounting groove (3), and the Y-direction mounting block (24) is located in the Y-direction limiting mounting groove (5). The swing seat body (1) and the shift fork (2) are also connected by locking bolts (7).

3. The wear-resistant swing seat structure of the fork-type hydraulic steering gear according to claim 2, characterized in that: Multiple Y-direction limiting mounting grooves (5) are provided on the swing seat body (1) along the height direction.

4. The wear-resistant swing seat structure of the fork-type hydraulic steering gear according to claim 2, characterized in that: A positioning hole (4) is also provided on the X-direction limiting mounting groove (3), and a positioning block (23) that cooperates with the positioning hole (4) is also provided on the X-direction mounting block (22).

5. The wear-resistant swing seat structure of the fork-type hydraulic steering gear according to claim 1 or 2, characterized in that: A wear-resistant plate (26) is provided on the side wall of the fork groove (27) of the shift fork (2).

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