Automatic lubricating device for open gear of port portal crane

Abstract

The application discloses a kind of open gear automatic lubricating device of port portal crane, and the application relates to the field of lubricating technology.The open gear automatic lubricating device of port portal crane, including base, lubricating mechanism, auxiliary mechanism, lubricating mechanism includes servo motor and protective shell, the middle part of inner wall of protective shell is fixedly connected with C-shaped obturator, the middle part inside protective shell is rotatably installed with driving gear, the center of driving gear is provided with inner hole, the inside of driving gear and from the center of gear tooth are provided with oil outlet hole, auxiliary mechanism includes crescent oil receiving groove body, the inner chamber of crescent oil receiving groove body and the top position close to hinged installation have swing pressing plate, the surface of swing pressing plate and the inner wall between crescent oil receiving groove body are fixedly connected with elastic capsule, the outside of crescent oil receiving groove body and rotary connector are detachably fixedly installed with oil discharge pipe, reach the purpose of uniform lubrication, can directional oil, increase lubricating area, there is no lubrication dead angle, and recovery lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of lubrication technology, and in particular to an automatic lubrication device for open gears of port gantry cranes. Background Technology

[0002] The full name of port gantry crane is portal crane, and it is simply called gantry crane in the terminal industry. It is a core loading and unloading equipment for general cargo and bulk cargo terminals. The red giant boom can rotate 360 ​​degrees and travel along the track, and can directly load and unload ships, cars and trains.

[0003] The open gear of the gantry crane is a core load-bearing component, and its lubrication directly affects its operating condition and service life. Therefore, lubrication of the open gear of the gantry crane is particularly important.

[0004] For example, Chinese Patent Publication No. CN218598781U discloses an automatic lubrication device for the open gear of a lock miter gate opening and closing mechanism. This device includes a lubrication pump station for supplying lubricating medium. The lubrication pump station is connected to an external oil tanker via a lubrication pipeline. The external oil tanker is mounted on the side of the open gear via a mounting bracket and meshes with the open gear to be lubricated. The lubrication pump station includes a motor, the output shaft of which is connected to the main shaft of the lubrication pump and provides pumping power. The motor is connected to a control system for controlling its start and stop. The oil suction port of the lubrication pump is connected to a storage port for lubricating medium. The grease reservoir is connected to the external oil wheel, and the outlet of the lubrication pump is connected to the lubrication pipeline. The external oil wheel consists of a grease inlet, a shaft, a shaft end cap, lubrication teeth, a grease outlet, and a mounting plate. The shaft end cap fixes the shaft to the center of the lubrication teeth. The grease inlet is located at the shaft end and connects to the lubrication pipeline. The grease outlet is located on the tooth surface of the lubrication teeth and communicates with the shaft through an internal pipeline. The mounting plate is used to connect the external oil wheel to the mounting bracket. Through multiple meshings between the open gear and the external oil wheel, the grease is applied to the tooth surface of the open gear, thereby achieving lubrication.

[0005] In existing technical references, an open gear can mesh with an external oil wheel to apply grease to the open gear teeth for lubrication. However, with this design, the teeth on the external oil wheel have grease outlets evenly distributed on their surfaces. This can cause grease to still spray out from the outlets on teeth that are not meshing, resulting in grease waste. Furthermore, with multiple outlets spraying oil simultaneously, the oil pressure will decrease, the oil outlet area will be small, and lubrication dead zones will easily appear, making it difficult to lubricate the open gear evenly. Summary of the Invention

[0006] To solve the above technical problems, the present invention is implemented through the following technical solution: An automatic lubrication device for open gears of a port gantry crane includes: A base, and a driven gear rotatably mounted on top of the base via a bearing housing, wherein a cylinder is detachably fixed to the surface of the driven gear, the cylinder being used to apply rolling pressure and being able to roll along its own central connecting shaft, a lubrication mechanism is installed on the surface of the base near the outer teeth of the driven gear, the lubrication mechanism being used to directionally spray lubricating oil onto the teeth of the driven gear, an oil scraper is detachably mounted at the bearing housing position on top of the base, and an auxiliary mechanism is installed on the surface of the base; The lubrication mechanism includes a servo motor and a protective housing. The surface of the servo motor is fixedly mounted to the surface of the base via a bracket. The side of the protective housing is detachably fixed to the surface of the servo motor. A C-shaped sealing element is fixedly connected to the middle of the inner wall of the protective housing. A drive gear is rotatably mounted in the middle of the interior of the protective housing. An arc-shaped groove is formed on the outer teeth of the drive gear. The inner side of the C-shaped sealing element is embedded in the arc-shaped groove. A rotary connector is installed at one end of the outer side of the drive gear. An inner hole is formed at the center of the drive gear. An oil outlet is formed inside the drive gear and from the center of the teeth. The oil outlet and the inner hole are connected to form an oil delivery channel. The rotation of the output end of the servo motor can drive the drive gear to rotate. A rotary connector is installed between the end of the drive gear and the top of the oil drain pipe to ensure smooth rotation of the drive gear and avoid structural jamming. With the rotational support of the driven gear by the bearing seat of the base, the drive gear drives the driven gear to rotate, thus enabling the driven gear to operate.

[0007] Furthermore, the auxiliary mechanism and the cylinder are fitted with a rolling type to form an oil supply structure, and the lubricating oil on the surface of the driven gear is recycled and reused. The auxiliary mechanism includes a crescent-shaped oil receiving groove, which is fixedly installed on the inner side of the base and directly below the drive gear. A swinging pressure plate is hinged to the inner cavity of the crescent-shaped oil receiving groove near its top. A bent tooth is detachably fixed to one end of the swinging pressure plate away from the inner wall of the crescent-shaped oil receiving groove. An elastic bladder is fixedly connected between the surface of the swinging pressure plate and the inner wall of the crescent-shaped oil receiving groove. The cylinder, bent tooth, and swinging pressure plate form a pressing structure that applies pressure to the elastic bladder. An oil drain pipe is detachably fixed between the outer side of the crescent-shaped oil receiving groove and the rotating connector. The oil drain pipe connects the elastic bladder and the inner hole, forming an oil supply pipeline. An oil outlet check valve is installed in the middle of the surface of the oil drain pipe. A reset spring is fixedly connected to the inner side of the crescent-shaped oil receiving groove. An oil suction pipe is fixedly connected to the oil inlet at the bottom of the elastic bladder. An oil inlet check valve is installed in the middle of the surface of the oil suction pipe. The driven gear rotates to drive the cylinder to roll. The cylinder contacts the bending teeth, so that the bending teeth are subjected to the rolling roller of the cylinder. The bending teeth drive the swing pressure plate to rotate and adjust the angle. The elastic bladder is compressed to form a self-priming pump oil structure. At the same time, the reset spring is compressed and undergoes elastic deformation. With the oil outlet check valve controlling the oil circuit, the mechanical energy of the gear rotation completes the circulation and delivery of lubricating oil. There is no need to configure an additional electric oil pump or hydraulic oil supply unit, reducing the electrical equipment for lubrication and reducing the cost of overall machine procurement, wiring and electrical control modification. At the same time, eliminating the continuous power consumption of the oil pump saves energy consumption of the port gantry crane in the long term.

[0008] Furthermore, the oil outlet check valve is used to control the discharge of lubricating oil from the elastic bladder in one direction, and the oil suction pipe and the oil inlet check valve form an oil inlet pipe for the elastic bladder when it is sucking in oil. The oil inlet check valve is used to control the intake of lubricating oil from the elastic bladder in one direction.

[0009] Furthermore, the bending teeth are installed at an angle, there are four bending teeth, and the four bending teeth are evenly installed on the outside of the driven gear. The reset spring is installed at an angle, and the top of the reset spring is hinged to the surface of the swing pressure plate.

[0010] A crescent-shaped oil receiving groove is positioned below the driven gear to collect excess lubricating oil dripping from the driven gear during meshing with the driving gear, thus recovering the lubricating oil. Meanwhile, the cylinder on the outer side of the driven gear periodically rolls and bends the teeth as it rotates, and a swinging pressure plate squeezes the elastic bladder to form an oil discharge. As the cylinder separates from the bend teeth, the swinging pressure plate rotates in the opposite direction under the elastic force of the reset spring, eliminating the compression on the elastic bladder. Through the expansion of the elastic bladder, and in conjunction with the oil suction pipe and inlet check valve, the lubricating oil recovered from the crescent-shaped oil receiving groove is drawn into the bladder. Subsequently, it is transported unidirectionally through the oil discharge pipe and outlet check valve to the inner hole at the center of the driving gear for re-supply of oil, achieving a closed-loop circulation and reuse of the lubricating oil.

[0011] Furthermore, the cylinders are evenly distributed along the circumferential direction of the driven gear's central axis, and the central axis of the cylinders is installed perpendicular to the surface of the driven gear.

[0012] Furthermore, the teeth on the outside of the driving gear mesh with the teeth on the outside of the driven gear. The C-shaped plug is made of rubber. The arc-shaped surface on the inside of the C-shaped plug fits into the inner surface of the arc-shaped groove. The inner surface of the C-shaped plug can seal the oil outlet of the oil outlet located inside the C-shaped plug.

[0013] The drive gear utilizes radially distributed oil outlets along the central bore to form an oil delivery channel. This is combined with a fixed rubber C-shaped sealing component that engages with the arc-shaped groove at the end of the outer teeth of the drive gear to form an intermittent sealed oil chamber. During the rotation of the drive gear, the oil passage is closed and oil is stored when the oil outlet passes through the sealing section. After rotating out of the sealing area, the oil pressure is released, and the lubricating oil is sprayed in a directional manner onto the meshing tooth surface of the driven gear and the drive gear. Each tooth can obtain a uniform and quantitative oil film, which solves the defects of uneven lubrication at the tooth root and tooth surface, local lack of oil and dry friction in port open gears, and reduces the occurrence of lubrication dead zones.

[0014] Furthermore, the oil outlet holes are evenly distributed inside the drive gear, and the oil outlet holes are radial along the central axis of the inner hole.

[0015] Furthermore, the oil scraper includes a support base plate, which is detachably fixed to the bearing seat at the top of the base by screws. Rectangular support plates are fixedly connected to both ends of the outer side of the support base plate, and bent oil scraping blades are fixedly connected to the sides of the rectangular support plates.

[0016] Removable scrapers are symmetrically arranged on both sides of the driven gear. The inclined, bent scraper blades are in close contact with the surface of the driven gear. When the driven gear rotates, they continuously scrape off excess oil from the driven gear, preventing dust and grease from mixing to form abrasives that aggravate gear wear. At the same time, they clean the oil stains on the tooth surface and ensure that the meshing surface is clean.

[0017] Furthermore, the supporting base plate is installed horizontally, and there are two supporting base plates, which are installed symmetrically along the driven gear.

[0018] The oil scraper is assembled with screws for easy disassembly. The bent scraper blades can be replaced individually after wear without disassembling the base and gear transmission structure. This makes maintenance and replacement convenient. The symmetrically arranged bent scraper blades on both sides fully cover the end face of the driven gear, removing dirt without dead angles. This significantly improves the stability of gear operation in the open-air, high-dust environment of the port. At the same time, the inclined bent scraper blades allow the lubricating oil on the end face of the driven gear to flow to the outer teeth, further promoting the lubrication of the teeth.

[0019] Furthermore, the bent oil scraper is installed at an angle, and there are four bent oil scrapers, which are evenly distributed on the outside of the driven gear. The scraping edge of the bent oil scraper is in contact with the surface of the driven gear.

[0020] The beneficial effects of the technical solution provided by this invention include: 1. Relying on the rotation of the driven gear to drive the cylinder to roll, the cylinder contacts the bending teeth, causing the bending teeth to be rolled by the cylinder's rollers. The bending teeth drive the swing plate to rotate and adjust the angle, while the elastic bladder is compressed to form a self-priming oil pump structure. At the same time, the reset spring is compressed and undergoes elastic deformation. With the oil circuit controlled by the oil outlet check valve, the mechanical energy of the gear rotation completes the circulation and delivery of lubricating oil. There is no need to configure additional electric oil pumps or hydraulic oil supply units, reducing the need for lubrication-related electrical equipment and lowering the overall machine procurement, wiring, and electrical control modification costs. At the same time, eliminating the continuous power consumption of the oil pump saves energy consumption in the long-term operation of the port gantry crane.

[0021] Second, by utilizing the oil outlet holes radially and evenly distributed along the center of the inner hole of the drive gear, an oil delivery channel is formed. This is combined with the fixed rubber C-shaped sealing part that engages with the arc-shaped groove at the end of the tooth on the outer side of the drive gear to form an intermittent sealed oil chamber. During the rotation of the drive gear, the oil passage is closed and oil is stored when the oil outlet hole passes through the sealing section. After rotating out of the sealing area, the oil pressure is released, and the lubricating oil is sprayed in a direction to the meshing tooth surface of the driven gear and the drive gear. Each tooth can obtain a uniform and quantitative oil film, which solves the defects of uneven lubrication of the tooth root and tooth surface of port open gears, local lack of oil and dry friction, and is less likely to have lubrication dead corners.

[0022] 3. The crescent-shaped oil receiving groove receives excess lubricating oil dripping from the driven gear during meshing with the driving gear, thus recovering the lubricating oil. The cylinder on the outside of the driven gear periodically rolls and bends the teeth as it rotates, and the swinging pressure plate squeezes the elastic bladder to form an oil discharge. As the cylinder separates from the bend teeth, the swinging pressure plate rotates in the opposite direction under the elastic force of the reset spring, eliminating the compression on the elastic bladder. Through the expansion of the elastic bladder, and in conjunction with the oil suction pipe and the oil inlet check valve, the lubricating oil recovered in the crescent-shaped oil receiving groove is drawn into the bladder. Subsequently, it is transported unidirectionally to the inner hole at the center of the driving gear through the oil discharge pipe and the oil outlet check valve to resupply the oil for injection, realizing a closed-loop circulation and reuse of lubricating oil.

[0023] 4. Removable oil scrapers are symmetrically arranged on both sides of the driven gear. The inclined, bent oil scraper blades are closely attached to the surface of the driven gear. When the driven gear rotates, they continuously scrape off excess oil from the driven gear, preventing dust and grease from mixing to form abrasives that aggravate gear wear. At the same time, they clean the oil stains on the tooth surface and ensure that the meshing surface is clean.

[0024] 5. The oil scraper is assembled with screws for easy disassembly. After the bent scraper blades wear, they can be replaced individually without disassembling the base and gear transmission structure. This makes maintenance and replacement convenient. The symmetrically arranged bent scraper blades on both sides fully cover the end face of the driven gear, removing dirt without dead angles. This significantly improves the stability of gear operation in the open-air high-dust environment of the port. At the same time, the inclined bent scraper blades allow the lubricating oil on the end face of the driven gear to flow to the outer gear teeth, further promoting the lubrication of the gear teeth. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an automatic lubrication device for open gears of a port gantry crane, provided in an embodiment of the present invention. Figure 2 This is a bottom view schematic diagram of an automatic lubrication device for open gears of a port gantry crane provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection structure between the lubrication mechanism and the driven gear provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure between the servo motor and the base provided in an embodiment of the present invention; Figure 5 This is a bottom view schematic diagram of the lubrication mechanism provided in an embodiment of the present invention; Figure 6 This is a cross-sectional internal structure diagram of the drive gear and oil outlet provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the overall structure of the oil scraper provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure between the auxiliary mechanism and the base provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the connection structure between the oil drain pipe and the rotary connector provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the internal structure of the crescent-shaped oil receiving groove provided in an embodiment of the present invention.

[0026] In the diagram: 1. Base; 2. Driven gear; 3. Cylinder; 4. Lubrication mechanism; 5. Oil scraper; 6. Auxiliary mechanism; 41. Servo motor; 42. Protective housing; 43. C-shaped sealing element; 44. Drive gear; 45. Arc-shaped groove; 46. Rotary connector; 47. Inner hole; 48. Oil outlet hole; 51. Support base plate; 52. Rectangular support plate; 53. Bent-shaped oil scraper; 61. Crescent-shaped oil receiving groove; 62. Swinging pressure plate; 63. Bent tooth; 64. Elastic bladder; 65. Oil drain pipe; 66. Oil outlet check valve; 67. Reset spring; 68. Oil suction pipe; 69. Oil inlet check valve. Detailed Implementation

[0027] Example 1, see Figures 1-6 A technical solution is provided: An automatic lubrication device for open gears of a port gantry crane includes: A base 1 and a driven gear 2 rotatably mounted on the top of the base 1 via a bearing seat. A cylinder 3 is detachably fixedly mounted on the surface of the driven gear 2. The cylinder 3 is used to apply rolling pressure and can roll along its own central connecting shaft. A lubrication mechanism 4 is installed on the surface of the base 1 near the outer teeth of the driven gear 2. The lubrication mechanism 4 is used to spray lubricating oil onto the teeth of the driven gear 2 in a directional manner. An oil scraper 5 is detachably mounted on the bearing seat at the top of the base 1. An auxiliary mechanism 6 is installed on the surface of the base 1. The cylinders 3 are evenly distributed along the circumference of the driven gear 2, and the central axis of the cylinders 3 is installed perpendicular to the surface of the driven gear 2; The lubrication mechanism 4 includes a servo motor 41 and a protective housing 42. The surface of the servo motor 41 is fixedly mounted to the surface of the base 1 via a bracket. The side of the protective housing 42 is detachably fixed to the surface of the servo motor 41. A C-shaped sealing member 43 is fixedly connected to the middle of the inner wall of the protective housing 42. A drive gear 44 is rotatably mounted in the middle of the inner wall of the protective housing 42. An arc-shaped groove 45 is provided at the tooth position on the outer side of the drive gear 44. The inner side of the C-shaped sealing member 43 is embedded in the interior of the arc-shaped groove 45. A rotating connector 46 is installed at one end of the outer side of the drive gear 44. An inner hole 47 is provided at the center of the drive gear 44. An oil outlet hole 48 is provided inside the drive gear 44 and from the center of the tooth. The oil outlet hole 48 is connected to the inner hole 47 to form an oil delivery channel.

[0028] When the servo motor 41 is turned on, the rotation of the output end of the servo motor 41 can drive the drive gear 44 to rotate. A rotating connector 46 is installed between the end of the drive gear 44 and the top of the oil drain pipe 65, so that the drive gear 44 rotates smoothly and avoids structural jamming. With the base 1 supporting the rotation of the driven gear 2 through the bearing seat, the drive gear 44 drives the driven gear 2 to rotate, so that the driven gear 2 runs.

[0029] The teeth on the outside of the driving gear 44 mesh with the teeth on the outside of the driven gear 2. The C-shaped sealing member 43 is made of rubber. The arc-shaped surface on the inside of the C-shaped sealing member 43 fits against the inner surface of the arc-shaped groove 45. The inner surface of the C-shaped sealing member 43 can seal the oil outlet 48 inside the C-shaped sealing member 43. The oil outlets 48 are radially and evenly distributed along the inner hole 47 at the center of the driving gear 44 to form an oil delivery channel, which is coordinated with the fixed rubber. The C-shaped sealing part 43 of the rubber fits into the arc groove 45 at the end of the tooth on the outer side of the drive gear 44 to form an intermittent sealed oil chamber. When the drive gear 44 rotates, the oil passage is closed and oil is stored when the oil outlet 48 passes through the sealing section. After rotating out of the sealing area, the oil pressure is released and the lubricating oil is sprayed in a direction to the meshing tooth surface of the driven gear 2 and the drive gear 44. Each tooth can obtain a uniform and quantitative oil film, which solves the defects of uneven lubrication of the tooth root and tooth surface of port open gears, local lack of oil and dry friction, and is less likely to have lubrication dead corners.

[0030] Oil outlet holes 48 are evenly distributed inside the drive gear 44, and the oil outlet holes 48 are radial along the central axis of the inner hole 47.

[0031] Example 2, based on Example 1, see [link / reference] Figures 1 to 7 A technical solution is provided: The oil scraper 5 includes a support base plate 51, which is detachably fixed to the bearing seat at the top of the base 1 by screws. Rectangular support plates 52 are fixedly connected to both ends of the outer side of the support base plate 51. Bending oil scraper blades 53 are fixedly connected to the sides of the rectangular support plates 52. Detachable oil scrapers 5 are symmetrically arranged on both sides of the driven gear 2. The bending oil scraper blades 53 installed at an angle are close to the surface of the driven gear 2. When the driven gear 2 rotates, the scraper continuously scrapes off the excess oil accumulated on the driven gear 2, preventing dust and grease from mixing to form abrasive and aggravating gear wear. It also cleans the oil stains on the tooth surface at the same time, ensuring that the meshing surface is clean.

[0032] The support base plate 51 is installed horizontally. There are two support base plates 51, and the two support base plates 51 are installed symmetrically along the driven gear 2.

[0033] The four bent oil scraper blades 53 are installed at an angle and are evenly distributed on the outside of the driven gear 2. The scraping edge of the bent oil scraper blade 53 is in contact with the surface of the driven gear 2. The oil scraper 5 is assembled by screws and can be disassembled. After the bent oil scraper blade 53 is worn, it can be replaced individually without disassembling the base and gear transmission structure. The maintenance and replacement are convenient. The symmetrically arranged bent oil scraper blades 53 on both sides cover the end face of the driven gear 2 in all directions, removing dirt without dead corners. This significantly improves the stability of gear operation in the open-air high dust environment of the port. At the same time, the bent oil scraper blades 53 installed at an angle flow the lubricating oil on the end face of the driven gear 2 to the outer tooth position, further promoting the lubrication of the tooth.

[0034] Example 3, based on Examples 1 and 2, see below. Figures 1 to 10 A technical solution is provided: The auxiliary mechanism 6 and the cylinder 3 are fitted with a rolling type to form an oil supply structure, and the lubricating oil on the surface of the driven gear 2 is recycled and reused. The auxiliary mechanism 6 includes a crescent-shaped oil receiving groove 61, which is fixedly installed inside the base 1 and directly below the drive gear 44. A swing pressure plate 62 is hinged to the inner cavity of the crescent-shaped oil receiving groove 61 near its top. A bent tooth 63 is detachably fixed to one end of the swing pressure plate 62 away from the inner wall of the crescent-shaped oil receiving groove 61. An elastic bladder 64 is fixedly connected between the surface of the swing pressure plate 62 and the inner wall of the crescent-shaped oil receiving groove 61. The cylinder 3, the bent tooth 63, and the swing... The pressure plate 62 forms a pressing structure that applies pressure to the elastic bladder 64. An oil drain pipe 65 is detachably fixed between the outer side of the crescent-shaped oil receiving groove 61 and the rotating connector 46. The oil drain pipe 65 connects the elastic bladder 64 and the inner hole 47 to form an oil supply pipeline. An oil outlet check valve 66 is installed in the middle of the surface of the oil drain pipe 65. A reset spring strip 67 is fixedly connected to the inner side of the crescent-shaped oil receiving groove 61. An oil suction pipe 68 is fixedly connected to the oil inlet at the bottom of the elastic bladder 64. An oil inlet check valve 69 is installed in the middle of the surface of the oil suction pipe 68. The driven gear 2 rotates, driving the cylinder 3 to roll. The cylinder 3 contacts the bent tooth 63, causing the bent tooth 63 to be subjected to the rolling pressure of the cylinder 3. The bent tooth 63 drives the swing pressure plate 62 to rotate and adjust its angle. The elastic bladder 64 is compressed to form a self-priming oil pump structure. At the same time, the reset spring 67 is compressed and undergoes elastic deformation. The oil circuit is controlled by the oil outlet check valve 66. The mechanical energy of the gear rotation completes the circulation and delivery of lubricating oil. There is no need to configure an additional electric oil pump or hydraulic oil supply unit, reducing the electrical equipment for lubrication and lowering the overall machine procurement, wiring and electrical control modification costs. At the same time, the continuous power consumption of the oil pump is eliminated, saving energy consumption of the port gantry crane in the long term.

[0035] The oil outlet check valve 66 is used to control the discharge of lubricating oil from the elastic bladder 64 in one direction. The oil suction pipe 68 and the oil inlet check valve 69 form the oil inlet pipe when the elastic bladder 64 is suctioning oil. The oil inlet check valve 69 is used to control the intake of lubricating oil from the elastic bladder 64 in one direction.

[0036] A crescent-shaped oil receiving groove 61 is arranged below the driven gear 2 to collect excess lubricating oil dripping from the driven gear 2 when it meshes with the driving gear 44, thus recovering the lubricating oil. The cylinder 3 on the outside of the driven gear 2 periodically rolls and bends the teeth 63 as it rotates, and the swinging pressure plate 62 squeezes the elastic bladder 64 to form an oil discharge. As the cylinder 3 separates from the teeth 63, the swinging pressure plate 62 rotates in the opposite direction under the elastic force of the reset spring 67, and the compression of the elastic bladder 64 is eliminated. Through the expansion of the elastic bladder 64, and in conjunction with the oil suction pipe 68 and the oil inlet check valve 69, the lubricating oil recovered in the crescent-shaped oil receiving groove 61 is sucked into the bladder. Subsequently, it is transported unidirectionally to the inner hole 47 at the center of the driving gear 44 through the oil discharge pipe 65 and the oil outlet check valve 66 to resupply the oil, realizing the closed-loop circulation and reuse of lubricating oil.

[0037] The bent teeth 63 are installed at an angle. There are four bent teeth 63, and the four bent teeth 63 are evenly installed on the outside of the driven gear 2. The reset spring 67 is installed at an angle, and the top of the reset spring 67 is hinged to the surface of the swing pressure plate 62.

[0038] In use, first inject an appropriate amount of lubricating oil into the tooth-shaped oil receiving groove 61. The operator then turns on the servo motor 41 to start working. The rotation of the output end of the servo motor 41 can drive the drive gear 44 to rotate. A rotating connector 46 is installed between the end of the drive gear 44 and the top of the oil drain pipe 65, so that the drive gear 44 rotates smoothly and avoids structural jamming. With the base 1 supporting the rotation of the driven gear 2 through the bearing seat, the drive gear 44 drives the driven gear 2 to rotate, so that the driven gear 2 can run. Furthermore, relying on the rotation of the driven gear 2 to drive the cylinder 3 to roll, the cylinder 3 contacts the bent tooth 63, causing the bent tooth 63 to be subjected to the rolling roller of the cylinder 3. The bent tooth 63 drives the swing pressure plate 62 to rotate and adjust the angle, and the elastic bladder 64 is compressed to form a self-priming pump oil structure. At the same time, the reset spring 67 is compressed and undergoes elastic deformation. With the control of the oil circuit by the oil outlet check valve 66, the mechanical energy of the gear rotation is used to complete the circulation and delivery of lubricating oil. The oil drain pipe 65 delivers lubricating oil into the inner hole 47. Under the pressure of the oil, the oil outlet holes 48, which are radially and evenly distributed along the inner hole 47 at the center of the drive gear 44, form an oil delivery channel. The fixed rubber C-shaped sealing part 43 cooperates with the arc groove 45 at the end of the tooth on the outside of the drive gear 44 to form an intermittent sealed oil chamber. When the drive gear 44 rotates, the oil passage is closed and oil is stored when the oil outlet hole 48 passes through the sealing section. After rotating out of the sealing area, the oil pressure is released and the lubricating oil is sprayed in a direction to the meshing tooth surface of the driven gear 2 and the drive gear 44. Each tooth can obtain a uniform and quantitative oil film, which solves the defects of uneven lubrication of the tooth root and tooth surface of port open gears, local lack of oil and dry friction, and is less likely to have lubrication dead corners. Furthermore, a crescent-shaped oil receiving groove 61 is arranged below the driven gear 2 to receive excess lubricating oil dripping when the driven gear 2 meshes with the driving gear 44, thus recovering the lubricating oil. The cylinder 3 on the outside of the driven gear 2 periodically rolls and bends the teeth 63 as it rotates, and the swinging pressure plate 62 squeezes the elastic bladder 64 to form an oil discharge. As the cylinder 3 separates from the bend teeth 63, the swinging pressure plate 62 rotates in the opposite direction under the elastic force of the reset spring 67, and the compression of the elastic bladder 64 is eliminated. Through the expansion of the elastic bladder 64, and in conjunction with the oil suction pipe 68 and the oil inlet check valve 69, the lubricating oil recovered in the crescent-shaped oil receiving groove 61 is sucked into the bladder. Subsequently, it is transported unidirectionally to the inner hole 47 at the center of the driving gear 44 through the oil discharge pipe 65 and the oil outlet check valve 66 to resupply the oil for injection, thus realizing the closed-loop circulation and reuse of lubricating oil. Furthermore, detachable scrapers 5 are symmetrically arranged on both sides of the driven gear 2. The inclined bent scraper blades 53 are closely attached to the surface of the driven gear 2. When the driven gear 2 rotates, the scraper continuously removes excess oil from the driven gear 2, preventing dust and grease from mixing to form abrasive and aggravating gear wear. It also cleans the oil stains on the tooth surface at the same time, ensuring that the meshing surface is clean. The oil scraper 5 is assembled with screws for easy disassembly. After the bent oil scraper 53 wears out, it can be replaced separately without disassembling the base and gear transmission structure. This makes maintenance and replacement convenient. The bent oil scraper 53, which is symmetrically arranged on both sides, fully covers the end face of the driven gear 2, removing dirt without dead angles. This significantly improves the stability of gear operation in the open-air high-dust environment of the port. At the same time, the inclined bent oil scraper 53 allows the lubricating oil on the end face of the driven gear 2 to flow to the outer tooth position, further promoting the lubrication of the gear teeth.

[0039] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic lubrication device for open gears of a port gantry crane, characterized in that, include: A base (1) and a driven gear (2) rotatably mounted on the top of the base (1) via a bearing seat. A cylinder (3) is detachably fixedly mounted on the surface of the driven gear (2). The cylinder (3) is used to apply rolling pressure and can roll along its own central connecting shaft. A lubrication mechanism (4) is installed on the surface of the base (1) near the outer teeth of the driven gear (2). The lubrication mechanism (4) is used to spray lubricating oil onto the teeth of the driven gear (2) in a directional manner. An oil scraper (5) is detachably mounted on the bearing seat at the top of the base (1). An auxiliary mechanism (6) is installed on the surface of the base (1). The lubrication mechanism (4) includes a servo motor (41) and a protective housing (42). The surface of the servo motor (41) is fixedly installed on the surface of the base (1) through a bracket. The side of the surface of the protective housing (42) is detachably fixedly installed on the surface of the servo motor (41). A C-shaped sealing member (43) is fixedly connected to the middle of the inner wall of the protective housing (42). A drive gear (44) is rotatably installed in the middle of the inside of the protective housing (42). An arc-shaped groove (45) is opened at the tooth position on the outside of the drive gear (44). The inner side of the C-shaped sealing member (43) is embedded in the inside of the arc-shaped groove (45). A rotating connector (46) is installed at one end of the outside of the drive gear (44). An inner hole (47) is opened at the center of the drive gear (44). An oil outlet hole (48) is opened inside the drive gear (44) and from the center of the tooth. The oil outlet hole (48) is connected to the inner hole (47) to form an oil delivery channel.

2. The automatic lubrication device for open gears of a port gantry crane according to claim 1, characterized in that: The auxiliary mechanism (6) and the cylinder (3) are fitted by a rolling type to form an oil supply structure, and the lubricating oil on the surface of the driven gear (2) is recycled and reused. The auxiliary mechanism (6) includes a crescent-shaped oil receiving groove (61), which is fixedly installed on the inner side of the base (1) and directly below the drive gear (44). A swing pressure plate (62) is hinged to the inner cavity of the crescent-shaped oil receiving groove (61) near the top. A bent tooth (63) is detachably fixed to one end of the swing pressure plate (62) away from the inner wall of the crescent-shaped oil receiving groove (61). An elastic bladder (64) is fixedly connected between the surface of the swing pressure plate (62) and the inner wall of the crescent-shaped oil receiving groove (61). The cylinder (3), the bent tooth (63), and the swing... The dynamic pressure plate (62) forms a pressing structure that applies pressure to the elastic bladder (64). The outer side of the crescent-shaped oil receiving groove (61) is detachably fixed to the rotating connector (46) with an oil drain pipe (65). The oil drain pipe (65) connects the elastic bladder (64) and the inner hole (47) to form an oil supply pipeline. An oil outlet check valve (66) is installed in the middle of the surface of the oil drain pipe (65). A reset spring strip (67) is fixedly connected to the inner side of the crescent-shaped oil receiving groove (61). An oil suction pipe (68) is fixedly connected to the oil inlet at the bottom of the elastic bladder (64). An oil inlet check valve (69) is installed in the middle of the surface of the oil suction pipe (68).

3. The automatic lubrication device for open gears of a port gantry crane according to claim 2, characterized in that: The oil outlet check valve (66) is used to control the discharge of lubricating oil in the elastic bladder (64) in one direction. The oil suction pipe (68) and the oil inlet check valve (69) form the oil inlet pipeline of the elastic bladder (64) when it is sucking oil. The oil inlet check valve (69) is used to control the intake of lubricating oil in the elastic bladder (64) in one direction.

4. The automatic lubrication device for open gears of a port gantry crane according to claim 2, characterized in that: The bending teeth (63) are installed at an angle, and there are four bending teeth (63), and the four bending teeth (63) are evenly installed on the outside of the driven gear (2). The reset spring (67) is installed at an angle, and the top of the reset spring (67) is hinged to the surface of the swing pressure plate (62).

5. The automatic lubrication device for open gears of a port gantry crane according to claim 1, characterized in that: The cylinders (3) are evenly distributed along the circumferential direction of the central axis of the driven gear (2), and the central axis of the cylinders (3) is installed perpendicular to the surface of the driven gear (2).

6. The automatic lubrication device for open gears of a port gantry crane according to claim 1, characterized in that: The teeth on the outside of the driving gear (44) mesh with the teeth on the outside of the driven gear (2). The C-shaped plug (43) is made of rubber. The arc-shaped surface on the inside of the C-shaped plug (43) fits against the inner surface of the arc groove (45). The inner surface of the C-shaped plug (43) can seal the oil outlet (48) inside the C-shaped plug (43).

7. The automatic lubrication device for open gears of a port gantry crane according to claim 1, characterized in that: The oil outlet holes (48) are evenly distributed inside the drive gear (44), and the oil outlet holes (48) are radial along the central axis of the inner hole (47).

8. The automatic lubrication device for open gears of a port gantry crane according to claim 1, characterized in that: The oil scraper (5) includes a support base plate (51), which is detachably fixed to the bearing seat at the top of the base (1) by screws. Rectangular support plates (52) are fixedly connected to both ends of the outer side of the support base plate (51), and bent oil scraper blades (53) are fixedly connected to the side of the surface of the rectangular support plate (52).

9. The automatic lubrication device for open gears of a port gantry crane according to claim 8, characterized in that: The support base plate (51) is installed horizontally. There are two support base plates (51), and the two support base plates (51) are installed symmetrically along the driven gear (2).

10. The automatic lubrication device for open gears of a port gantry crane according to claim 8, characterized in that: The bent oil scraper (53) is installed at an angle. There are four bent oil scrapers (53), and the four bent oil scrapers (53) are evenly distributed on the outside of the driven gear (2). The scraping edge of the bent oil scraper (53) is in contact with the surface of the driven gear (2).

Images