Automatic lubricating equipment for lifting chain of chain bucket ship unloader and oiling method

Abstract

The invention discloses automatic lubricating equipment for a lifting chain of a chain bucket ship unloader and an oiling method, and the system comprises an X-direction moving device, a Y-direction moving device, an automatic oiling device and a controller; the automatic oiling device is installed on the Y-direction moving device, and the Y-direction moving device is installed on the X-direction moving device. During operation, the controller can control the X-direction moving device and the Y-direction moving device to act in real time according to data collected by the three-way laser ranging limiting instrument, the position of the three-way laser ranging limiting instrument is automatically adjusted, and the oil filling nozzle is made to be located at the proper oil filling position all the time. The device has X, Y and Z space three-direction moving and follow-up functions, in the chain link switching process, if a chain shakes, the situation can be known through monitoring of the three-direction laser ranging limiting instrument, the controller controls the X-direction moving device and the Y-direction moving device to act and adjust the position of the oil filling nozzle, it is ensured that the oil filling nozzle is located at the accurate oil filling position all the time for oil filling, and the oil filling efficiency is improved. The filling effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of ship unloading equipment, and in particular relates to automatic lubrication equipment and a refueling method for a lifting chain of a chain bucket ship unloader. Background Art

[0002] The chain bucket ship unloader is a special ship unloading equipment for bulk cargo terminals, which is characterized by high efficiency, energy saving and environmental protection. The lifting chain is half buried in the powder ore during operation and is eroded by the powder ore and water for a long time. Under harsh working conditions, the lubrication of the chain links is particularly important. The two chain bucket lifting chains are 97.5 meters long, with 800 sections and a total of 1,600 lubrication points. The general lubrication cycle is 100,000 tons / time. The lubrication effect is related to the service life of the chain, and lubrication maintenance work is particularly important.

[0003] At present, the chain lubrication of the chain bucket unloader at the bulk ore terminal mainly relies on manual oiling. Generally, the lifting chain is stopped. After manually adding a section of chain links on the ground of the reclaiming head, the chain is started to rotate the unmaintained chain links to the ground, and then the lifting chain is stopped and oiling is continued. This cycle is repeated until all chain link axle pins are lubricated. Generally, it takes 4 people to work together for 3-4 hours to maintain the lifting chain, which is time-consuming, labor-intensive and inefficient.

[0004] In order to solve the problem of low efficiency, a Chinese patent with publication number CN102180345A discloses an automatic chain lubrication device for a chain bucket elevator, which includes a pneumatic control system composed of an air compressor and a pipeline and a vehicle support with a U-shaped notch, an air compressor and a lubricating oil pump are installed inside the notch, and a horizontal adjustment seat and a rubber universal walking wheel are symmetrically arranged at the bottom. The two wall arms of the U-shaped groove are symmetrically equipped with longitudinal movable guide rails, which support the longitudinal movable operating platform, and the longitudinal operating platform is equipped with a transverse movable guide rail, which supports the transverse movable operating platform, and the transverse movable operating platform is equipped with a longitudinal positioning block and a refueling gun; a high-pressure gas nozzle is also installed on the vehicle support; the chain automatic lubrication device is placed 550mm below the chain bucket, and when the center line of the U-shaped notch of the vehicle support is consistent with the running direction of the chain, the transverse movable operating platform is driven by the pneumatic control system to move and freely connect with the chain pin shaft, and the chain will drive it to move forward a distance of a chain pitch, completing the cleaning and lubrication cycle of a pair of chain pin shafts.

[0005] The technical solution disclosed in the above patent (CN102180345A) requires that the position of the refueling device be manually adjusted according to the height of the lifting transmission chain before refueling, and then the refueling nozzle must be aligned with the chain before the chain can be started for automatic refueling. In addition, the refueling equipment can only be moved horizontally and repeatedly in the direction of chain rotation. In actual situations, the wind trembling of the arm of the chain bucket unloader and the vibration of the chain operation will cause the material head to shake, and the position of the chain is constantly changing. The refueling device cannot follow the chain shaking and refuel in real time, resulting in poor refueling effect. Summary of the invention

[0006] The object of the present invention is to provide an automatic lubricating device and a lubricating method for a lifting chain of a chain bucket ship unloader with high lubricating efficiency, accurate alignment and good effect.

[0007] The technical scheme of the present invention is as follows: an automatic lubrication device for lifting chains of a chain bucket ship unloader, characterized in that it comprises an X-direction moving device, a Y-direction moving device, an automatic oiling device and a controller; the automatic oiling device comprises a fixed bracket, a Z-direction moving seat movably mounted on the fixed bracket, two sets of tracking oiling components and a three-way laser rangefinder for judging the position of chain links; the tracking oiling component comprises an oiling cylinder, a tracking cylinder and a control valve, the piston rod end of the oiling cylinder is connected with an oiling nozzle, the piston rod end of the tracking cylinder is connected with a follower stopper for intercepting a chain pin shaft, the oiling cylinder and the follower stopper are connected to the oiling cylinder and the follower stopper is connected to the oiling cylinder and the follower stopper is connected to the oiling cylinder and the follower stopper is connected to the oiling cylinder and the follower stopper is connected to the oiling cylinder and the follower stopper is connected to the follower stopper. The tracking cylinders are arranged side by side and fixedly mounted on the Z-direction moving seat respectively. The Z-direction moving seat is also connected with a reset tension spring. The three-way laser ranging limiter is fixedly mounted on the fixed bracket through the induction bracket. The fixed bracket is mounted on the Y-direction moving device and can move longitudinally under the drive of the Y-direction moving device. The Y-direction moving device is mounted on the X-direction moving device and can move laterally under the drive of the X-direction moving device. During operation, the controller can control the actions of the X-direction moving device and the Y-direction moving device in real time according to the data collected by the three-way laser ranging limiter, and automatically adjust the position of the three-way laser ranging limiter.

[0008] Furthermore, the X-direction moving device comprises a base, an X-direction slide rail mounted on the base, an X-direction moving seat mounted on the X-direction slide rail, and an X-direction driving cylinder capable of driving the X-direction moving seat to move. The Y-direction moving device comprises a stand mounted on the X-direction moving seat, a Y-direction slide rail mounted on the stand, a Y-direction moving seat mounted on the Y-direction slide rail, and a Y-direction driving cylinder capable of driving the Y-direction moving seat to move.

[0009] Furthermore, the follower stopper comprises a connecting rod connected to the end of the piston rod and an arc-shaped stopper installed at the front end of the connecting rod.

[0010] Furthermore, the control valve is a machine-controlled valve, the valve body of the machine-controlled valve is fixedly mounted on the fixed bracket, and the block assembly of the machine-controlled valve is mounted on the Z-direction movable seat. When the chain drives the Z-direction movable seat to move, the block assembly can follow the movement and drive the machine-controlled valve plunger to move up and down, so that the piston rods of the tracking cylinder and the refueling cylinder can extend or retract.

[0011] The present invention also provides a refueling method for the automatic lubrication device based on the chain bucket ship unloader lifting chain, characterized in that it comprises the following steps: (1) Install two sets of the automatic lubrication equipment to lubricate and maintain the lifting chains on both sides of the chain bucket ship unloader; in the initial state, the lifting chains on both sides of the chain bucket ship unloader are in the maintenance position waiting for lubrication, and the oiling nozzles of the two sets of automatic lubrication equipment are on standby at the initial zero position; (2) When refueling, first manually control the X-axis moving device and the Y-axis moving device of the automatic lubrication equipment to make the three-axis laser rangefinder reach the monitoring zero position of the first chain link to be refueled; (3) The piston rods of the tracking cylinders of the two tracking and refueling assemblies extend at the same time, and the corresponding two follower blocks contact the two chain pin ends of the chain link to be refueled, starting the chain to rotate at the maintenance speed. The rotation drives the Z-axis moving seat to move synchronously. At this time, the piston rod of the refueling cylinder extends, the refueling nozzle docks the chain pin and oil is injected; (4) After the first chain link is refueled, the piston rods of the refueling cylinder and the tracking cylinder are retracted, and under the action of the reset spring, the tracking refueling assembly is reset along with the Z-axis moving seat; waiting for the next chain link to be refueled; (5) After the tracking refueling assembly is reset, the three-way laser rangefinder collects the distance data with the chain plates and pins on both sides of the chain link in real time to determine whether it is in the monitoring zero position. If it is in the monitoring zero position, repeat steps (3)-(4) until all chain link pins are refueled; if it is not in the monitoring zero position, execute step (6); (6) The controller controls the movement of the X-axis moving device and the Y-axis moving device in real time according to the spacing data collected by the three-axis laser distance measuring limiter, and adjusts the three-axis laser distance measuring limiter to move to the monitoring zero position; and then repeats steps (3)-(4) until all chain pins are refueled.

[0012] Furthermore, the controller is built with a counter, and the total number of chain links is set at the beginning of refueling. Each time the refueling of a chain link is completed, the count is made once, and the refueling stops automatically when all the chain links are refueled.

[0013] The beneficial effects of the present invention are as follows: the automatic lubrication system of the present invention has the functions of X, Y, and Z spatial three-dimensional movement and following-up. During the process of switching chain links, if the chain shakes, it can be detected through the monitoring of the three-dimensional laser ranging limiter, and the controller controls the movement of the X-direction moving device and the Y-direction moving device to adjust the position of the oiling nozzle, ensuring that the oiling nozzle is always in the accurate refueling position for refueling, and the refueling effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0015] Figure 1It is a schematic diagram of the state of two sets of automatic lubrication equipment of the present invention lubricating the lifting chain.

[0016] Figure 2 It is a schematic structural diagram of the automatic lubrication device of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the automatic refueling device in the present invention.

[0018] Figure 4 It is a schematic diagram of the state when the follower stopper and the oiling nozzle cooperate with the chain in the present invention.

[0019] Figure 5 It is a schematic diagram of the timing control valve in the refueling state in the present invention. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] like Figure 1 As shown, the automatic lubrication device for lifting chain of chain bucket ship unloader of the present invention comprises an X-axis moving device 100, a Y-axis moving device 200, an automatic oiling device 300, a lubrication station 400 and a controller; the controller is a PLC control cabinet installed in a control cabinet 500.

[0022] like Figure 2 As shown, the X-direction moving device 100 includes a base 101, an X-direction slide rail 102 mounted on the base, an X-direction moving seat 103 mounted on the X-direction slide rail, and an X-direction driving cylinder 104 capable of driving the X-direction moving seat to move. A lateral limit switch 105 is provided on each of the left and right sides of the X-direction slide rail 102. The piston rod of the X-direction driving cylinder 104 can drive the X-direction moving seat to move along the X-direction slide rail 102 by retracting.

[0023] The Y-direction moving device 200 comprises a stand 201 mounted on the X-direction moving seat 103, a Y-direction slide rail 202 mounted on the stand, a Y-direction moving seat 203 mounted on the Y-direction slide rail, and a Y-direction driving cylinder 204 capable of driving the Y-direction moving seat to move. Two upper and lower longitudinal limit switches 205 are provided on the Y-direction slide rail 202. The piston rod of the Y-direction driving cylinder 204 can drive the Y-direction moving seat to move along the Y-direction slide rail 202 by retracting.

[0024] like Figure 2-4As shown, the automatic refueling device 300 includes a fixed bracket 301, a Z-direction moving seat 302 movably mounted on the fixed bracket, two sets of tracking refueling components and a three-way laser distance measuring stopper 303 for determining the position of the chain link. The tracking refueling component includes a refueling cylinder 304, a tracking cylinder 305 and a control valve 306. The piston rod end of the refueling cylinder is connected to a refueling nozzle 307, and the refueling nozzle 307 is connected to the lubrication station 400 through a pipeline. The piston rod end of the tracking cylinder is connected to a follower stopper 308 for intercepting the chain pin. The refueling cylinder 304 and the tracking cylinder 305 are arranged side by side and are fixedly mounted on the Z-direction moving seat 302 respectively. The Z-direction moving seat 302 is also connected to a reset tension spring 309. The three-way laser distance measuring stopper 303 is fixedly mounted on the fixed bracket 301 through an induction bracket 310. The fixed bracket 301 is installed on the Y-direction moving seat 203 and can move longitudinally under the drive of the Y-direction driving cylinder 204. The Y-direction moving device can move laterally under the drive of the X-direction driving cylinder 104. During operation, the controller can control the X-direction moving device and the Y-direction moving device according to the data collected by the three-dimensional laser ranging limiter 303 after real-time calculation and processing, and can automatically adjust the position of the three-dimensional laser ranging limiter.

[0025] Specifically, the follower stopper 308 includes a connecting rod connected to the end of the piston rod and an arc-shaped baffle installed at the front end of the connecting rod. The design of the arc-shaped baffle, in addition to blocking the follow-up action, can also play a certain limiting role to limit the pin shaft from shaking up and down.

[0026] The control valve 306 can be a solenoid valve, which is controlled to open or close by a controller. A machine-controlled valve can also be used. Specifically, the valve body 3061 of the machine-controlled valve is fixedly mounted on the fixed bracket 301, and the stopper assembly 3062 of the machine-controlled valve is mounted on the Z-direction movable seat 302. The valve body is provided with an air inlet P1, a first air outlet E1, a second air outlet E2 and an air vent. The air inlet P1 is connected to an external air source, the first air outlet E1 is connected to the refueling cylinder 304, and the second air outlet E2 is connected to the tracking cylinder 305. When the chain drives the Z-direction movable seat to move, the stopper assembly 3062 can follow the movement and drive the plunger 3063 of the machine-controlled valve to move up and down, so as to control the opening or closing of the first air outlet E1 and the second air outlet E2 of the machine-controlled valve, and then control the extension or retraction of the piston rods of the tracking cylinder and the refueling cylinder.

[0027] The process of automatic refueling control by the machine-controlled valve is as follows: in the initial state, the roller at the lower end of the plunger 3063 is located at A1, which is the refueling waiting state ( Figure 5When the air inlet P1 is connected to the second air outlet, the piston rod of the tracking cylinder 305 is extended. When it moves to A2, it is in the refueling state. At this time, the air inlet P1 is connected to the first air outlet and the second air outlet at the same time, and the piston rods of the refueling cylinder 304 and the tracking cylinder 305 are both in the extended state. When it moves to A3, it is in the open reset state. At this time, the first air outlet E1 and the second air outlet E2 are connected to the venting port at the same time, and the piston rods of the refueling cylinder 304 and the tracking cylinder 305 are both retracted. With the reset of the block assembly 3062, it returns to the refueling waiting state at A1.

[0028] The following is a detailed introduction of a refueling method for the automatic lubrication device based on the lifting chain of the chain bucket ship unloader, which specifically includes the following steps.

[0029] Two sets of the automatic lubrication equipment are installed to lubricate and maintain the lifting chains on both sides of the chain bucket ship unloader; in the initial state, the lifting chains on both sides of the chain bucket ship unloader are waiting for lubrication at the maintenance position, and the oiling nozzles of the two sets of automatic lubrication equipment are on standby at the initial zero position. The initial zero position of the oiling nozzle means that the X-axis moving seat is at the left limit position, and the Y-axis moving seat is at the lower limit position.

[0030] (2) When refueling, first manually control the X-axis moving device 100 and the Y-axis moving device 200 of the automatic lubrication equipment to move, so that the three-axis laser distance measuring limiter 303 reaches the monitoring zero position of the first chain link to be refueled. Figure 1 When the three-way laser distance measuring limiter 303 is located at the monitoring zero position, the oiling cylinder piston rod is extended to the right position, and the oiling nozzle just docks with the chain pin.

[0031] (3) The piston rods of the tracking cylinders 305 of the two tracking and refueling assemblies extend simultaneously, and the corresponding two follower blocks contact the two chain pin ends of the chain link to be refueled, starting the chain to rotate at the maintenance speed. The rotation drives the Z-axis moving seat 302 to move synchronously. At this time, the piston rod of the refueling cylinder 304 extends, and the refueling nozzle 307 docks with the chain pin and performs oiling; (4) After the first chain link is refueled, the piston rods of the refueling cylinder 304 and the tracking cylinder 305 are retracted, and under the action of the reset spring 309, the tracking refueling assembly is reset along with the Z-direction moving seat 302, waiting for the next chain link to be refueled; (5) After the tracking refueling assembly is reset, the three-way laser distance measuring limiter 303 collects the distance data between the chain plates and the pins on both sides of the chain link in real time to determine whether it is in the monitoring zero position. If it is in the monitoring zero position, steps (3) to (4) are repeated until all the chain link pins are refueled; if it is not in the monitoring zero position, step (6) is executed; (6) The controller controls the movement of the X-axis moving device 100 and the Y-axis moving device 200 in real time according to the spacing data collected by the three-axis laser distance measuring limiter 303, and adjusts the three-axis laser distance measuring limiter 303 to move to the monitoring zero position; and then repeats steps (3)-(4) until all chain pins are refueled.

[0032] Furthermore, the controller is built with a counter, and the total number of chain links is set at the beginning of refueling. Each time the refueling of a chain link is completed, the count is made once, and the refueling stops automatically when all the chain links are refueled.

[0033] By adopting the scheme of the present invention, the chain pin shaft can be automatically oiled with a high degree of automation, and the problem of the oiling nozzle not being aligned with the pin shaft due to shaking of the chain during operation can be effectively solved, thereby realizing automatic lubrication of the lifting chain pin shaft of the chain bucket ship unloader, and having broad application prospects in the field of chain transmission.

[0034] In summary, although the present invention lists the above-mentioned preferred embodiments, it should be noted that although technicians in this field can make various changes and modifications, unless such changes and modifications deviate from the scope of the present invention, they should be included in the protection scope of the present invention.

Claims

1. An automatic lubrication device for lifting chain of chain bucket ship unloader, characterized in that: It includes an X-axis moving device, a Y-axis moving device, an automatic refueling device and a controller; The automatic refueling device includes a fixed bracket, a Z-direction moving seat movably mounted on the fixed bracket, two sets of tracking refueling components and a three-way laser distance measuring limiter for judging the position of the chain links; the tracking refueling component includes a refueling cylinder, a tracking cylinder and a control valve, the piston rod end of the refueling cylinder is connected with a refueling nozzle, the piston rod end of the tracking cylinder is connected with a follower stopper for intercepting the chain pin shaft, the refueling cylinder and the tracking cylinder are arranged side by side and are respectively fixedly mounted on the Z-direction moving seat, the Z-direction moving seat is also connected with a reset tension spring, and the three-way laser distance measuring limiter is fixedly mounted on the fixed bracket through an induction bracket; The fixed bracket is installed on the Y-direction moving device and can move longitudinally under the drive of the Y-direction moving device, and the Y-direction moving device is installed on the X-direction moving device and can move laterally under the drive of the X-direction moving device; During operation, the controller can control the movement of the X-axis moving device and the Y-axis moving device in real time according to the data collected by the three-axis laser distance measuring limiter, and automatically adjust the position of the three-axis laser distance measuring limiter.

2. The automatic lubrication device for lifting chain of chain bucket ship unloader according to claim 1 is characterized in that: The X-direction moving device comprises a base, an X-direction slide rail installed on the base, an X-direction moving seat installed on the X-direction slide rail, and an X-direction driving cylinder capable of driving the X-direction moving seat to move.

3. The automatic lubrication device for lifting chain of chain bucket ship unloader according to claim 2 is characterized in that: The Y-direction moving device comprises a stand mounted on the X-direction moving seat, a Y-direction slide rail mounted on the stand, a Y-direction moving seat mounted on the Y-direction slide rail, and a Y-direction driving cylinder capable of driving the Y-direction moving seat to move.

4. The automatic lubrication device for lifting chain of chain bucket ship unloader according to claim 1 is characterized in that: The following stopper comprises a connecting rod connected to the end of the piston rod and an arc-shaped stopper installed at the front end of the connecting rod.

5. The automatic lubrication device for lifting chain of chain bucket ship unloader according to any one of claims 1 to 4, characterized in that: The control valve is a machine-controlled valve, the valve body of the machine-controlled valve is fixedly mounted on the fixed bracket, and the block assembly of the machine-controlled valve is mounted on the Z-direction movable seat. When the chain drives the Z-direction movable seat to move, the block assembly can follow the movement and drive the machine-controlled valve plunger to move up and down, so that the piston rods of the tracking cylinder and the refueling cylinder are extended or retracted.

6. A refueling method for the automatic lubrication device of the lifting chain of the chain bucket ship unloader according to any one of claims 1 to 5, characterized in that: The steps include: (1) Install two sets of the automatic lubrication equipment to lubricate and maintain the lifting chains on both sides of the chain bucket ship unloader; in the initial state, the lifting chains on both sides of the chain bucket ship unloader are in the maintenance position waiting for lubrication, and the oiling nozzles of the two sets of automatic lubrication equipment are on standby at the initial zero position; (2) When refueling, first manually control the X-axis moving device and the Y-axis moving device of the automatic lubrication equipment to make the three-axis laser rangefinder reach the monitoring zero position of the first chain link to be refueled; (3) The piston rods of the tracking cylinders of the two tracking and refueling assemblies extend at the same time, and the corresponding two follower blocks contact the two chain pin ends of the chain link to be refueled, starting the chain to rotate at the maintenance speed. The rotation drives the Z-axis moving seat to move synchronously. At this time, the piston rod of the refueling cylinder extends, the refueling nozzle docks the chain pin and oil is injected; (4) After the first chain link is refueled, the piston rods of the refueling cylinder and the tracking cylinder are retracted, and under the action of the reset spring, the tracking refueling assembly is reset along with the Z-axis moving seat; waiting for the next chain link to be refueled; (5) After the tracking refueling assembly is reset, the three-way laser rangefinder collects the distance data between the chain plates and the pins on both sides of the chain link in real time to determine whether it is in the monitoring zero position. If it is in the monitoring zero position, repeat steps (3) to (4) until all the chain link pins are refueled; If it is not at the monitoring zero position, execute step (6); (6) The controller controls the movement of the X-axis moving device and the Y-axis moving device in real time according to the spacing data collected by the three-axis laser distance measuring limiter, and adjusts the three-axis laser distance measuring limiter to move to the monitoring zero position; and then repeats steps (3)-(4) until all chain pins are refueled.

7. The automatic lubrication device for lifting chain of chain bucket ship unloader according to claim 1 is characterized in that: The controller is built with a counter, which sets the total number of chain links at the beginning of refueling, counts once each time a chain link is refueled, and stops automatically when all chain links are refueled.

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