Test bed for ship shafting sealing device
By designing a test bench for ship shaft system sealing device with strong adaptability, the problem of inability to quantify leakage and high test cost is solved, and the adaptability test and leakage quantization measurement of a variety of sealing devices are realized.
Patent Information
- Application Number
- CN202422561192.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In the prior art, the leakage problem of ship shaft system sealing devices cannot be quantified, and sealing devices of different sizes require different test benches, which increases the test cost.
A test bench for the ship shaft sealing device is designed, including a first fixed seat, a second fixed seat, a transmission shaft, a transverse shift seat, a longitudinal seat, a water connection box, a weighing device and a water tank. By adjusting the position of the water tank horizontally and longitudinally, the leakage flow is quantified, and the water connection box and a weighing device are used to measure the leakage amount.
Adaptability tests for a variety of ship shaft system sealing devices are realized, which can quantify leakage and reduce the test cost.
Smart Images
Figure CN223217048U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ship shafting, in particular to a test bench for a ship shafting sealing device. Background Art
[0002] A ship usually contains multiple shaft systems. In order to avoid leakage problems in the shaft systems, corresponding shaft system sealing devices need to be installed, such as bulkhead shaft system sealing devices, stern shaft sealing devices and side thruster shaft system sealing devices, to seal the corresponding shaft systems.
[0003] During the construction of shaft seals, sealing tests are required to ensure effective sealing. Because the housings of bulkhead, stern, and thruster shaft seals vary in size, a single test bench cannot be used. Consequently, multiple test benches are often required, increasing testing costs.
[0004] In addition, during the test, if the shaft sealing device leaks, it is usually only possible to judge the leakage by visually observing the water flow, but the leakage amount cannot be quantified and needs to be improved. Utility Model Content
[0005] The main technical problem solved by the utility model is to provide a ship shaft sealing device test bench, which can be used to test various shaft sealing devices on ships and quantify the leakage amount.
[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a test bench for a ship shafting sealing device, comprising: a first fixed seat, a second fixed seat, a transmission shaft, a transverse seat, a longitudinal seat, a water receiving box, a weighing device and a water tank, wherein the second fixed seat is arranged in front of the first fixed seat, the longitudinal seat can be longitudinally movably adjusted on the second fixed seat, the transverse seat can be laterally adjusted front and back on the longitudinal seat, the water tank is arranged on the transverse seat, a water supply pipe joint is provided on one side of the water tank, the transmission shaft is horizontally arranged on the second fixed seat and located behind the water tank, a flange directly or indirectly connected to the ship shafting sealing device is provided on the side of the water tank facing the transmission shaft, a test shaft mounting interface is provided at the front end of the transmission shaft, a test shaft corresponding to the ship shafting sealing device is provided on the test shaft mounting interface, a rotation drive mechanism corresponding to the transmission shaft is provided on the first fixed seat, the weighing device is movably arranged on the second fixed seat and located below between the test shaft mounting interface and the water tank, and the water receiving box is provided on the weighing device.
[0007] In a preferred embodiment of the present invention, pads are provided on the second fixing seat at intervals in front and rear, and are located below the longitudinal seat. Fixing blocks are provided on the pads on both longitudinal sides of the longitudinal seat, and adjustment screws are horizontally provided in the fixing blocks, pointing vertically to the corresponding side of the longitudinal seat.
[0008] In a preferred embodiment of the present invention, a guide rail extending transversely and located below the transverse seat is provided on the longitudinal seat, and a slider located on the guide rail is provided at the bottom of the transverse seat.
[0009] In a preferred embodiment of the present invention, a screw rod extending laterally and located below the transverse seat is provided on the longitudinal seat, a nut located on the screw rod is provided at the bottom of the transverse seat, and a hand wheel is provided at the front end of the screw rod.
[0010] In a preferred embodiment of the present invention, a pressure gauge is provided on the water tank.
[0011] In a preferred embodiment of the present invention, a first bearing seat and a second bearing seat corresponding to the transmission shaft are arranged on the second fixing seat at intervals in the front and rear directions.
[0012] In a preferred embodiment of the present invention, the weighing device is an electronic scale.
[0013] In a preferred embodiment of the present invention, the rotary drive mechanism includes a motor, a reducer and a first coupling, the reducer is located in front of the motor, and the first coupling is connected between the motor and the reducer.
[0014] In a preferred embodiment of the present invention, the rotary drive mechanism further includes a second coupling and a torque speed sensor, the torque speed sensor is located in front of the reducer, and the second coupling is connected between the reducer and the torque speed sensor.
[0015] In a preferred embodiment of the present invention, the rotary drive mechanism further includes a diaphragm coupling, and the diaphragm coupling is connected between the torque and speed sensor and the transmission shaft.
[0016] The beneficial effects of the present invention are as follows: the present invention points out a test bench for a ship shaft sealing device, the water tank can be connected to various ship shaft sealing devices through a flange, and the transverse seat and the longitudinal seat are used to move the water tank transversely and longitudinally, adjust the position of the ship shaft sealing device, ensure that the test shaft can be inserted into the seal in the ship shaft sealing device, and perform a sealing test, thereby improving the adaptability to various ship shaft sealing devices, and using a water receiving box to receive the leaked water flow, thereby realizing the weighing of the water flow and the quantification of the leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:
[0018] Figure 1 This is a structural schematic diagram of a preferred embodiment of a test bench for a ship shafting sealing device of the utility model;
[0019] Figure 2 yes Figure 1 Top view of . DETAILED DESCRIPTION
[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1~Figure 2 , the embodiments of the present utility model include:
[0022] like Figure 1 The ship shaft sealing device test bench shown includes: a first fixing seat 1, a second fixing seat 2, a transmission shaft 8, a transverse seat 6, a longitudinal seat 4, a water receiving box 13, a weighing device 12 and a water tank 3. The second fixing seat 2 is arranged in front of the first fixing seat 1. The first fixing seat 1 and the second fixing seat 2 can be fixed to the test site by anchor bolts, and the structure is stable.
[0023] The longitudinal seat 4 is arranged on the second fixed seat 2 so as to be longitudinally movable and adjustable. Figure 2 As shown, the second fixing seat 2 is provided with backing plates 7 at intervals in front and back and below the longitudinal seat. By replacing backing plates 7 of different thicknesses, the height of the water tank 3 can be adjusted. Figure 2 As shown, the second fixing seat 2 is provided with positioning grooves 29 corresponding to the pads 7 one by one, which can be used to position the pads 7 and facilitate replacement.
[0024] In this embodiment, the backing plate 7 is provided with fixing blocks 27 located on both sides of the longitudinal seat 4. The fixing blocks 27 can be fixed to the backing plate 7 by screws, which has a strong structure and is easy to disassemble and assemble. The fixing blocks 27 are horizontally provided with adjustment screws 26 pointing vertically to the corresponding side of the longitudinal seat 4. Figure 2 As shown, the longitudinal movement adjustment of the longitudinal seat 4 and the limit after adjustment are performed by adjusting screws 26 on both sides, which is easy to operate.
[0025] The traverse seat 6 is mounted on the longitudinal seat 4 so as to be adjustable in the forward and backward directions. The longitudinal seat 4 is provided with a guide rail 10 extending transversely and positioned below the traverse seat 6. A slider 9 is provided at the bottom of the traverse seat 6 and is positioned on the guide rail 10 to support and guide the traverse seat 6, providing high stability. A screw rod 18 is provided on the longitudinal seat 4 and extends transversely and is positioned below the traverse seat 6. A nut 5 is provided at the bottom of the traverse seat 6 and is positioned on the screw rod 18. A handwheel 11 is provided at the front end of the screw rod 18 to facilitate rotation of the screw rod 18 and achieve traverse adjustment of the traverse seat 6.
[0026] The water tank 3 is set on the transverse seat 6 and can be fixed by screws and adjusted transversely along with the transverse seat 6. Figure 1 As shown, a water supply pipe joint 15 is provided on one side of the water tank 3, which can be connected to an external constant pressure water supply system to supply water to the water tank 3 during the test. A pressure gauge 14 is provided on the water tank 3 to monitor the water pressure.
[0027] The transmission shaft 8 is horizontally set on the second fixed seat 2 and located behind the water tank 3. In this embodiment, the first bearing seat 19 and the second bearing seat 17 corresponding to the transmission shaft 8 are arranged at intervals in the front and rear on the second fixed seat 2 to provide rotational support for the transmission shaft 8 and ensure the stability of the transmission shaft 8.
[0028] like Figure 2 As shown, a flange 28 is provided on the side of the water tank 3 facing the transmission shaft, which is directly or indirectly connected to the ship shaft sealing device. The flange 28 can be directly or indirectly connected to the ship shaft sealing device through an adapter to transmit water pressure to the ship shaft sealing device.
[0029] A test shaft mounting interface 16 is provided at the front end of the transmission shaft 8, and a test shaft corresponding to the ship shaft system sealing device is provided on the test shaft mounting interface 16. The position of the water tank 3 is adjusted so that the test shaft can be inserted into the seal in the ship shaft system sealing device. The test shaft rotates with the transmission shaft 8 to simulate the rotation of the ship shaft system. The sealing test of the ship shaft system sealing device is carried out during the rotation.
[0030] A rotation drive mechanism corresponding to the transmission shaft 8 is provided on the first fixed seat 1. In this embodiment, the rotation drive mechanism includes a motor 25, a reducer 23, a first coupling 24, a second coupling 22, a torque and speed sensor 21 and a diaphragm coupling 20. The reducer 23 is located in front of the motor 25 and is connected between the motor 25 and the reducer 23 through the first coupling 24 for power input. The motor 25 can be rotationally controlled by a controller to improve the level of automation.
[0031] like Figure 1As shown, the torque and speed sensor 21 is located in front of the reducer 23, the second coupling 22 is connected between the reducer 23 and the torque and speed sensor 21, and the diaphragm coupling 20 is connected between the torque and speed sensor 21 and the transmission shaft 8 to drive the transmission shaft 8. The torque and speed sensor 21 monitors the speed and torque at the output end of the reducer 23. The torque and speed sensor 21 can be connected to a controller to facilitate the controller's regulation of the motor 25.
[0032] The weighing device 12 is movably mounted on the second fixing base 2 and positioned below the test shaft mounting interface 16 and the water tank 3. During testing, the weighing device 12 can be quickly adjusted to below the leakage point. The water receiving box 13 is mounted on the weighing device 12 and receives the leaking water through the water receiving box 13. In this embodiment, the weighing device 12 is an electronic scale that can measure the water flow and quantify the leakage.
[0033] In summary, the ship shaft sealing device test bench provided by the present invention can perform sealing tests on various ship shaft sealing devices, is easy to adjust, and has a wide range of applications.
[0034] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A test bench for ship shaft sealing devices, used for sealing tests of ship shaft sealing devices, characterized in that: include: A first fixed seat, a second fixed seat, a transmission shaft, a transverse seat, a longitudinal seat, a water receiving box, a weighing device and a water tank, the second fixed seat is arranged in front of the first fixed seat, the longitudinal seat can be longitudinally moved and adjusted on the second fixed seat, the transverse seat can be laterally adjusted front and back on the longitudinal seat, the water tank is arranged on the transverse seat, a water supply pipe joint is provided on one side of the water tank, the transmission shaft is horizontally arranged on the second fixed seat and is located behind the water tank, a flange directly or indirectly connected to the ship shafting sealing device is provided on the side of the water tank facing the transmission shaft, a test shaft mounting interface is provided at the front end of the transmission shaft, a test shaft corresponding to the ship shafting sealing device is provided on the test shaft mounting interface, a rotating drive mechanism corresponding to the transmission shaft is provided on the first fixed seat, the weighing device is movably arranged on the second fixed seat and is located below between the test shaft mounting interface and the water tank, and the water receiving box is provided on the weighing device.
2. The ship shaft sealing device test bench according to claim 1, characterized in that: The second fixing seat is provided with pads spaced apart in front and back below the longitudinal seat, the pads are provided with fixing blocks on both longitudinal sides of the longitudinal seat, and the fixing blocks are horizontally provided with adjustment screws pointing vertically to the corresponding sides of the longitudinal seat.
3. The ship shaft sealing device test bench according to claim 1, characterized in that: A guide rail extending transversely and located below the transverse seat is provided on the longitudinal seat, and a sliding block located on the guide rail is provided at the bottom of the transverse seat.
4. The ship shaft sealing device test bench according to claim 1, characterized in that: The longitudinal seat is provided with a screw rod which extends transversely and is located below the transverse seat. The bottom of the transverse seat is provided with a nut which is located on the screw rod. The front end of the screw rod is provided with a hand wheel.
5. The ship shaft sealing device test bench according to claim 1, characterized in that: The water tank is provided with a pressure gauge.
6. The ship shaft sealing device test bench according to claim 1, characterized in that: The second fixing seat is provided with a first bearing seat and a second bearing seat corresponding to the transmission shaft at intervals in front and back.
7. The ship shaft sealing device test bench according to claim 1, characterized in that: The weighing device adopts an electronic scale.
8. The ship shaft sealing device test bench according to claim 1, characterized in that: The rotary drive mechanism includes a motor, a reducer and a first coupling. The reducer is located in front of the motor, and the first coupling is connected between the motor and the reducer.
9. The ship shaft sealing device test bench according to claim 8, characterized in that: The rotary drive mechanism further includes a second coupling and a torque and speed sensor. The torque and speed sensor is located in front of the reducer, and the second coupling is connected between the reducer and the torque and speed sensor.
10. The ship shaft sealing device test bench according to claim 9, characterized in that: The rotary drive mechanism further includes a diaphragm coupling, which is connected between the torque and speed sensor and the transmission shaft.