A dry oil lubrication system for gears and racks in a vertical ship lift

Abstract

A dry oil lubrication system for the gear and rack mechanism of a vertical ship lift includes a housing assembly. The housing assembly contains an air chamber and an oil reservoir. One end of the air chamber is connected to an air compressor via a first air pipe, and the other end is connected to a nozzle mounting assembly via a second air pipe. One end of the oil reservoir is connected to the nozzle mounting assembly via an oil pipe. Multiple groups of nozzle mounting assemblies are arranged on the surface of the gear and rack mechanism of the vertical ship lift. This invention provides a dry oil lubrication system for the gear and rack mechanism of a vertical ship lift, which eliminates lubrication blind spots, improves lubrication efficiency, and extends equipment life.

Description

Technical Field

[0001] This utility model relates to the field of ship lift technology, and in particular to a dry oil lubrication system for the gear rack of a vertical ship lift. Background Technology

[0002] The gear and rack mechanism of large vertical ship lifts operates under low-speed, heavy-load, and open-loop conditions for extended periods, and its lubrication system faces the following key challenges: 1) Uneven lubrication coverage and the existence of blind spots Existing fuel injectors are arranged symmetrically, while the width of the rack is greater than that of the gear, making it difficult to cover the entire meshing area of ​​the gear and rack. Especially under low-speed conditions, the lubricant cannot effectively penetrate to the root and tip areas of the teeth, resulting in local dry friction on the tooth surface, causing wear and other problems, and ultimately leading to tooth surface peeling or even breakage.

[0003] 2) Injection parameters do not match operating conditions The existing lubrication system has a fixed nozzle angle and sprays vertically. Under heavy load conditions, the grease is easily squeezed out of the high-stress area, leading to boundary lubrication failure. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a dry oil lubrication system for the gears and racks of a vertical ship lift, which provides uniform lubrication coverage and reduces blind spots; the number of oil nozzles is allocated as needed and the spray angle of the oil nozzles is adjustable, so as to achieve the best possible matching between the oil injection parameters and the working conditions, thereby improving the safety and reliability of the equipment.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A dry oil lubrication system for a vertical ship lift gear rack includes a housing assembly. The housing assembly contains an air chamber and an oil storage chamber. One end of the air chamber is connected to an air compressor via a first air pipe, and the other end is connected to a nozzle mounting assembly via a second air pipe. One end of the oil storage chamber is connected to the nozzle mounting assembly via an oil pipe. The nozzle mounting components are arranged in multiple groups on the surface of the gear and rack mechanism of the vertical ship lift.

[0006] The gear and rack mechanism has an upper crossbeam mounted above the gear support and a lower crossbeam mounted below it. The gear is mounted on the gear support via a gear shaft. The nozzle mounting assembly is arranged in multiple groups on the upper and lower crossbeams respectively.

[0007] When the rack of the gear and rack mechanism is wider than the gear, the number of nozzle mounting assemblies for oil lubrication of the rack meshing surface is greater than the number of nozzle mounting assemblies for oil lubrication of the gear meshing surface.

[0008] The nozzle mounting assembly includes a nozzle body, with a second air inlet and an oil inlet at each of the horizontal ends of the nozzle body. The second air inlet is connected to a second air pipe, and the oil inlet is connected to an oil pipe. The nozzle body also has an atomizing oil spray nozzle in the vertical direction.

[0009] A cross groove is provided on the atomizing oil nozzle.

[0010] The nozzle mounting assembly is arranged facing the rack side, with the atomizing nozzle at the upper crossbeam facing downwards and the atomizing nozzle at the lower crossbeam facing upwards.

[0011] The nozzle body is a T-shaped tube. The horizontal part of the T-shaped tube can be rotatably mounted on the mounting bracket, and both ends of the T-shaped tube are locked with nuts by thread.

[0012] This utility model provides a dry oil lubrication system for the gears and racks of a vertical ship lift, which has the following technical advantages: 1) Improved lubrication coverage: The upper four sets and lower two sets of oil injectors form a multi-layer spray network. The oil injectors have cross grooves, resulting in a wider and more uniform spray area, covering the entire area of ​​the tooth tip, meshing surface, and tooth root. This effectively solves the problem that the width of the rack is greater than the width of the gear and eliminates lubrication blind spots. At the same time, the adjustable oil injector angle design ensures that the grease reaches the high-stress contact area directly, improving anti-wear performance.

[0013] 2) Extend equipment life: Even oil film coverage can effectively reduce the wear rate of tooth surfaces, extend the service life of gears and racks, and reduce the frequency of downtime maintenance. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall layout of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the gear and rack mechanism in this utility model.

[0017] Figure 4 This is a schematic diagram of the nozzle mounting assembly in this utility model.

[0018] Figure 5 This is a bottom view of the nozzle mounting assembly in this utility model.

[0019] Figure 6 This is a schematic diagram showing the installation position of the nozzle in this utility model.

[0020] Figure 7 for Figure 6 A magnified view of a section at point A (spraying toothed rack).

[0021] Figure 8 for Figure 6 A magnified view of a section at point B (spraying gear).

[0022] In the diagram: Dry oil lubrication system 1, housing assembly 101, controller 102, air compressor 103, oil pipe 104, first air pipe 105, nozzle mounting assembly 106, second air inlet 1061, oil inlet 1062, atomizing oil nozzle 1063, mounting bracket 1064, first air inlet 107, first air outlet 108, oil outlet 109, second air pipe 110, second air outlet 111, gear and rack mechanism 2, gear 201, upper crossbeam 202, lower crossbeam 203, rack 204, gear shaft 205, gear support 206. Detailed Implementation

[0023] like Figure 1-2 As shown, a dry oil lubrication system for a vertical ship lift gear rack includes a dry oil lubrication system 1 arranged at the gear rack mechanism 2.

[0024] like Figure 3 As shown, the rack and pinion mechanism 2 is the drive component of the vertical ship lift and is not an improvement of this application. The rack and pinion mechanism 2 includes a gear support 206, with an upper crossbeam 202 mounted above and a lower crossbeam 203 mounted below. A gear shaft 205 is rotatably mounted on the gear support 206 between the upper and lower crossbeams 202 and 203. A gear 201 is mounted on the gear shaft 205, and the gear 201 meshes with a rack 204. Driving the gear 201 via a drive device enables the ship lift to move up and down.

[0025] like Figure 2 As shown, the dry oil lubrication system 1 includes a housing assembly 101, and a controller 102 is mounted on the surface of the housing assembly 101. The controller 102 adjusts the parameters, modes, etc. of the dry oil lubrication system 1.

[0026] The housing assembly 101 has a first air inlet 107 and a second air outlet 111 on each side. The first air inlet 107 is connected to the first air outlet 108 of the air compressor 103 via a first air pipe 105. The second air outlet 111 is connected to the second air inlet 1061 of the nozzle mounting assembly 106 via a second air pipe 110. The air compressor 103 first delivers compressed air at a pressure of 0.8-1.2 MPa into the housing assembly 101, and then the compressed air is delivered to the nozzle mounting assembly 106 via the second air outlet 111 on the other side of the housing assembly 101 and the second air pipe 110.

[0027] Preferably, the first air pipe 105 and the second air pipe 110 are both high-pressure resin hoses, which facilitate system installation and can withstand and transmit high-pressure air.

[0028] like Figure 2 As shown, a number of oil outlets 109 are also installed on the left side of the housing assembly 101. The dry oil and grease in the housing enter the oil pipe 104 through the oil outlets 109 and are transmitted to the oil inlet 1062 of the oil nozzle mounting assembly 106 through the oil pipe 104.

[0029] like Figure 4 As shown, the nozzle mounting assembly 106 includes a nozzle body. The nozzle body has two horizontal ports, namely a second air inlet 1061 and an oil inlet 1062. The second air inlet 1061 is connected to a second air pipe 110, which transmits compressed air into the nozzle body. The oil inlet 1062 is connected to an oil pipe 104, which transmits dry oil and grease into the nozzle body.

[0030] like Figures 4-5 As shown, the vertical nozzle of the nozzle body is an atomizing oil spray port 1063. The atomizing oil spray port 1063 has a cross groove. The oil sprayed through the cross groove covers a wider area than the oil sprayed through the circular groove, resulting in more uniform spraying. After the high-pressure air comes into contact with the dry oil, it converts the oil into a mist and sprays it onto the surface of the gear and rack mechanism 2 through the atomizing oil spray port 1063. After the gear 201 and the rack 204 mesh, an oil film is formed, protecting the surface from damage.

[0031] like Figure 1 As shown, the nozzle mounting assembly 106 comprises six sets, which can be arranged according to actual needs. In this application, the rack 204 is wider than the gear 201, and four sets can be installed on the surface of the upper crossbeam 202 of the gear and rack mechanism 2 to provide oil spray lubrication for the upper meshing surface of the rack 204; the other two sets are installed on the surface of the lower crossbeam 202 of the gear and rack mechanism 2 to provide oil spray lubrication for the lower meshing surface of the gear 201. When the widths of the rack 204 and the gear 201 in the gear and rack mechanism 2 are the same, three sets can also be arranged on the top and three sets on the bottom. That is, the number and installation position of the nozzle mounting assembly 106 are determined according to the requirements, ensuring full coverage.

[0032] like Figure 4-5 As shown, the nozzle body is mounted on the upper or lower crossbeam 202 via mounting bracket 1064. Nuts are threaded onto the nozzle body on both the left and right outer sides of the mounting bracket 1064, locking the nozzle body in place. When the two nuts are loosened, the nozzle body can rotate relative to the mounting holes of the mounting bracket 1064. This allows multiple nozzles to be adjusted to different angles, enabling them to better perform the spraying operation.

[0033] like Figures 6-8As shown, the nozzle mounting assembly 106 is installed on the surface of the upper and lower crossbeams of the gear and rack mechanism 2, specifically on the edge of the crossbeam base, i.e., the side facing the rack.

[0034] System check: A motion indicator is installed at the oil outlet 109. To check whether the oil outlet 109 is functioning properly, observe the movement of the motion indicator. Under normal circumstances, the indicator will extend and retract once during one working cycle. If the indicator does not move during operation, it indicates that the oil outlet corresponding to the indicator is blocked or has other malfunctions, and an alarm will be triggered by the controller 102.

[0035] A pressure switch is installed on the first air outlet 108 to detect the intake pressure. When the pressure is lower than 0.8MPa, an alarm is triggered by the controller 102.

[0036] The first air inlet 107 is equipped with a circulation switch to detect the number of times the lubrication system runs and its status. The interval between two consecutive system runs can be controlled by the controller 102. That is, when the number of times the ship lift cabin runs reaches the set value, the circulation switch closes and the lubrication system starts.

[0037] Working principle and process: 1) In the initial state, the air pressure in the air compressor 103 is 0.8-1.2MPa. After the system is ready, the lubricating grease and high-pressure air are transmitted to the nozzle mounting assembly 106 through the oil outlet 109 and the second air outlet 111, respectively. 2) When the nozzle mounting assembly 106 is installed, it is adjusted to different angles to correspond to the tooth root, tooth tip, meshing surface and other areas respectively. After the compressed air comes into contact with the grease, it breaks the grease into fine particles and sprays it onto the tooth surface of the gear rack mechanism 2 through the atomizing oil spray nozzle 1063 along with the compressed air. 3) Gear 201 and rack 204 form an oil film on their tooth surfaces through meshing, protecting the tooth surfaces from wear.

Claims

1. A dry oil lubrication system for gears and racks in a vertical ship lift, characterized in that: The system includes a housing assembly (101), which contains an air chamber and an oil storage chamber. One end of the air chamber is connected to an air compressor (103) via a first air pipe (105), and the other end is connected to a nozzle mounting assembly (106) via a second air pipe (110). One end of the oil storage chamber is connected to the nozzle mounting assembly (106) via an oil pipe (104). The nozzle mounting assembly (106) is arranged in multiple groups on the surface of the gear and rack mechanism (2) of the vertical ship lift; The nozzle mounting assembly (106) includes a nozzle body. The nozzle body has a second air inlet (1061) and an oil inlet (1062) at its horizontal ends. The second air inlet (1061) is connected to the second air pipe (110), and the oil inlet (1062) is connected to the oil pipe (104). The nozzle body has an atomizing oil spray port (1063) in the vertical direction. A cross groove is provided on the atomizing oil nozzle (1063); The nozzle mounting assembly (106) is arranged facing the rack (204), with the atomizing nozzle (1063) at the upper crossbeam (202) facing downwards and the atomizing nozzle (1063) at the lower crossbeam (203) facing upwards.

2. The dry oil lubrication system for a vertical ship lift gear and rack according to claim 1, characterized in that: The gear rack mechanism (2) has an upper crossbeam (202) installed above the gear support (206) and a lower crossbeam (203) installed below it. The gear (201) is mounted on the gear support (206) through the gear shaft (205). The nozzle mounting assembly (106) is arranged in multiple groups on the upper crossbeam (202) and the lower crossbeam (203).

3. The dry oil lubrication system for a vertical ship lift gear and rack according to claim 2, characterized in that: When the rack (204) of the gear and rack mechanism (2) is wider than the gear (201), the number of nozzle mounting assemblies (106) for oil spraying lubrication of the meshing surface of the rack (204) is greater than the number of nozzle mounting assemblies (106) for oil spraying lubrication of the meshing surface of the gear (201).

4. The dry oil lubrication system for a vertical ship lift gear and rack according to claim 1, characterized in that: The nozzle body is a T-shaped tube. The horizontal part of the T-shaped tube can be rotatably mounted on the mounting bracket (1064). The two ends of the T-shaped tube are locked with nuts by thread.

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