Self-lubricating device for rack of steel moving machine of steel plant

Abstract

The utility model discloses a self-lubricating device for a rack of a steel moving machine of a steel plant, which is characterized in that the rack is fixed on a guide rail of a rack, a gear is arranged on the steel moving machine, and a protective cover is arranged on the gear; the oil storage barrel is fixedly connected with the protective cover, the oil outlet pipe is communicated with the oil storage barrel, and the pressurizing device is used for pressurizing grease in the oil storage barrel. An outlet of the oil outlet pipe faces the rack; the two oil outlet pipes are arranged on the two sides of the oil storage barrel respectively. The pressurizing device comprises a gas filling pipe, a high-pressure gas tank, a sliding plate and a tension spring; the gas filling pipe is communicated with a cavity between the sliding plate and the top wall of the oil storage barrel; a flexible canvas bag made of canvas is arranged on the oil filling pipe, and the canvas bag extends into teeth of the rack; compared with the prior art, the device has the beneficial effects that through the arrangement of the mesh canvas bag, grease is fed into the canvas bag through the pressurizing device, and is smeared in the teeth of the rack through the meshes of the canvas bag, so that the rack and the gear are prevented from being worn too fast.

Description

Technical Field

[0001] This utility model belongs to the field of lubrication device technology, and specifically relates to a self-lubricating device for the rack of a steel transfer machine in a steelmaking plant. Background Technology

[0002] Because rack and pinion drives offer advantages such as smooth transmission and high efficiency, they are commonly used in continuous casting transfer machines in steel plants. However, during gear and rack meshing, problems such as tooth surface wear, pitting, and tooth breakage often occur, significantly shortening the service life of the gears and racks. Therefore, timely lubrication of the racks and gears is crucial. However, current gear and rack lubrication methods mostly rely on manual application of grease, which is inefficient and poses a safety risk due to its proximity to the finished casting. Currently, there is no mature automatic lubrication device, and most steel companies still use manual lubrication, which is inefficient and dangerous, requiring a solution.

[0003] Among existing patents, patent application number CN202110353345.5, entitled "Lubrication Device," discloses a device including an oil collecting assembly and an oil-throwing component. The oil collecting assembly forms an oil guiding channel, and the oil-throwing component is connected to the drive shaft of the gearbox. The oil-throwing component rotates with the drive shaft and picks up oil, then transports the oil to the oil guiding channel, and guides it to the bearings of the gearbox for lubrication. This device is suitable for lubricating oils with good fluidity, but cannot be used for lubricating greases with poor fluidity.

[0004] Another patent application, CN201580080177.X, entitled "Lubrication Device," discloses a lubrication device comprising a lubricating oil supply member disposed opposite to the front end face of an input shaft. An axial oil passage and a radial oil passage are formed inside the input shaft. The axial and radial oil passages connect the outer peripheral surface of the input shaft, which has external splines, to the front end face. Inside the lubricating oil supply member are a first supply oil passage and a second supply oil passage for lubricating oil supplied to the axial oil passage 43. An inlet for lubricating oil to flow into the first supply oil passage is provided. This application is applicable to ordinary, highly fluid lubricating oils; it cannot be used for non-fluid greases. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a self-lubricating device for the rack of a steel transfer machine in a steelmaking plant, and how to automatically apply grease to avoid rapid wear of the gear rack.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A self-lubricating device for a rack of a steel transfer machine in a steelmaking plant is disclosed. A rack is fixed on a guide rail of the frame, and a gear is mounted on the steel transfer machine. The gear meshes with the rack, driving the steel transfer machine to reciprocate along the guide rail. A protective cover is mounted on the gear. The device includes an oil storage tank fixedly connected to the protective cover, an oil outlet pipe communicating with the oil storage tank, and a pressurizing device for pressurizing the grease in the oil storage tank. The outlet of the oil outlet pipe faces the rack. There are two oil outlet pipes, respectively located on both sides of the oil storage tank.

[0008] Furthermore, the pressurization device includes a gas filling pipe connected to the top of the oil storage tank and a high-pressure gas tank connected to the gas filling pipe; a pressure regulating valve for adjusting the gas pressure inside the oil storage tank is installed on the gas filling pipe.

[0009] Furthermore, the high-pressure gas tank is provided with a gas outlet, and a pressure gauge is provided on the gas outlet; the gas outlet is fixedly connected to the gas filling pipe.

[0010] Furthermore, the pressurizing device also includes a sliding plate slidably connected to the inner wall of the oil storage tank and a tension spring disposed between the sliding plate and the top wall of the oil storage tank; the gas filling pipe communicates with the cavity between the sliding plate and the top wall of the oil storage tank.

[0011] Furthermore, the oil outlet end of the oil outlet pipe is provided with a flat refueling pipe; the length of the oil outlet of the flat refueling pipe is adapted to the width of the rack.

[0012] Furthermore, the flat refueling pipe is provided with a flexible canvas bag made of canvas, which extends into the teeth of the rack. The canvas bag is provided with mesh holes, the diameter of which is no greater than 0.2mm.

[0013] Furthermore, a reinforcing rib is provided between the oil outlet pipe and the oil storage tank; since the oil outlet pipe is generally thin and long, its strength is not high and it is easy to deform. Providing a reinforcing rib near the bottom of the oil storage tank can prevent deformation of the oil outlet pipe. The oil outlet of the flat refueling pipe is located above the rack.

[0014] Compared with the prior art, the significant beneficial effects achieved by this utility model are as follows:

[0015] When the gears rotate, driving the steel transfer machine to reciprocate linear motion, grease is added to the teeth of the rack through the grease pipe located near the rack, replacing the original manual application of lubricant, reducing labor intensity and manpower.

[0016] By adjusting the pressure of the pressure regulating valve through the pressure of the pressurizing device, the pressure of the grease in the oil outlet pipe can be controlled, thereby controlling the oil output and automatically adding oil.

[0017] By using a deformable refueling tube that is compatible with the rack, grease can be evenly applied to the teeth of the rack. The mesh canvas bag allows the grease to be applied to the teeth of the rack. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic front view of the structure of this utility model;

[0019] Appendix Figure 2 This is a schematic diagram of the pressurization device;

[0020] Appendix Figure 3 A schematic diagram of the deformable refueling hose;

[0021] Appendix Figure 4 This is a schematic diagram of the installation structure of a canvas bag.

[0022] In the attached diagram,

[0023] 1-Rack, 2-Gear, 3-Protective cover, 4-Oil storage tank, 5-Oil outlet pipe, 6-Reinforcing rib, 7-Deformed refueling pipe, 8-High-pressure gas tank, 9-Pressure regulating valve, 10-Gas refueling pipe;

[0024] 41-Sliding plate, 42-Tension spring, 43-Pressure gauge, 71-Canvas bag. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0027] Example 1

[0028] like Figure 1 , Figure 2 and Figure 3 As shown,

[0029] A rack 1 is fixed on the guide rail of the frame, and a gear 2 is provided on the steel transfer machine. When the gear 2 rotates, the gear 2 on the steel transfer machine meshes with the rack 1, driving the steel transfer machine to reciprocate on the guide rail. A protective cover 3 is provided on the gear 2.

[0030] A self-lubricating device for a rack of a steel transfer machine in a steelmaking plant includes an oil storage tank 4 fixedly connected to a protective cover 3, an oil outlet pipe 5 communicating with the oil storage tank 4, and a pressurizing device for pressurizing the grease in the oil storage tank 4; the outlet of the oil outlet pipe 5 faces the rack 1; there are two oil outlet pipes 5, respectively located on both sides of the oil storage tank 4.

[0031] The oil outlet pipes 5 on both sides can evenly spray grease onto the rack 1 when the steel transfer machine is in motion, thus improving the lubrication between the gear 2 and the rack 1.

[0032] like Figure 2 As shown, the pressurizing device includes a gas filling pipe 10 connected to the top of the oil storage tank 4 and a high-pressure gas tank 8 connected to the gas filling pipe 10; a pressure regulating valve 9 is installed on the gas filling pipe 10 to adjust the gas pressure inside the oil storage tank 4. The pressure regulating valve 9 controls the pressure inside the gas filling pipe 10, preventing excessive pressure from causing too much grease to flow out and resulting in waste; it also prevents insufficient pressure from causing the grease to fail to flow out, leading to poor lubrication.

[0033] The high-pressure gas tank 8 is provided with a gas outlet, and a pressure gauge 43 is provided on the gas outlet; the gas outlet is fixedly connected to the gas filling pipe 10. The pressure gauge 43 is provided to observe the pressure of the high-pressure gas tank 8 and to prevent the pressure from being too low to drive the grease flow.

[0034] The pressurizing device further includes a sliding plate 41 slidably connected to the inner wall of the oil storage tank 4 and a tension spring 42 disposed between the sliding plate 41 and the top wall of the oil storage tank 4; the sliding plate 41 is sealed to the inner wall of the oil storage tank 4; the gas filling pipe 10 communicates with the cavity between the sliding plate 41 and the top wall of the oil storage tank 4. The tension spring 42 is used to reset the sliding plate 41;

[0035] The sliding plate 41 slides inside the oil storage tank 4. Pressurized gas acts on the upper surface of the sliding plate 41, causing the sliding plate 41 to pressurize the grease. This prevents the gas from acting directly on the grease. When there is little grease in the tank, gas may be released, causing wear on the gears and racks.

[0036] like Figure 3 As shown, the oil outlet end of the oil outlet pipe 5 is provided with a flat refueling pipe 7; the length of the oil outlet of the flat refueling pipe 7 is adapted to the width of the rack 1. The oil outlet of the flat refueling pipe 7 is located above the rack 1.

[0037] The width of the rack 1 should be equal to the outlet length of the flat oil filling tube 7, which is the most reasonable. This will allow the grease to be evenly applied to the rack 1. The outlet width of the flat oil filling tube 7 should not exceed 1mm. If it is too large, a large pressure is required to squeeze out the grease. If it is too small, too little grease will flow out. The most reasonable width is between 0.5-0.6mm.

[0038] It is also equipped with a controller, which is connected to the pressure regulating valve 9 and the motor signal that controls the rotation of the gear 2.

[0039] The working process of this utility model,

[0040] When the steel transfer machine is driven by the gear to reciprocate on the rack, after the controller receives the signal of the rotation of the gear 2, the pressure regulating valve 9 of the pressurizing device opens, and the high-pressure gas (nitrogen) applies pressure to the sliding plate 41. After overcoming the tension of the spring 42, the sliding plate 41 pressurizes the grease, and the grease is applied to the teeth of the rack 1 through the outlet of the flat oil filling pipe 7 of the oil outlet pipe 5.

[0041] Example 2

[0042] The structure of this embodiment is largely the same as that of Embodiment 1.

[0043] The difference is that,

[0044] like Figure 4 As shown, the flat refueling pipe 7 is equipped with a flexible canvas bag 71.

[0045] Inserted into the teeth of the rack 1, the canvas bag is provided with mesh holes, the diameter of which is no greater than 0.2mm. If the mesh hole diameter is too small, the resistance will be large; if the diameter is too large, the oil output will be large, resulting in waste. After exploration, we adopted a mesh hole diameter of 0.12mm.

[0046] The grease can be applied to the tooth surface of the rack 1 using the canvas bag 71, thus avoiding waste.

[0047] Example 3

[0048] The structure of this embodiment is largely the same as that of embodiment 2.

[0049] The difference is that,

[0050] The oil outlet pipe 5 is slender and has poor rigidity. In order to prevent deformation during use, a reinforcing rib 6 is set between the oil outlet pipe 5 and the oil storage tank 4 near the pipe opening. This way, the flat oil outlet pipe 7 on the oil outlet pipe 5 can stably deliver oil to the rack 1, avoiding spillage outside the rack 1 and causing waste.

[0051] The oil storage tank 4 is equipped with an observation window made of plexiglass, which makes it easy to observe the oil level in the oil storage tank 4 in real time and avoid the rack from wearing out when there is no oil.

[0052] Currently, the technical solution of this application has undergone pilot testing, which is a small-scale experiment before the product is mass-produced. After the pilot testing was completed, a user survey was conducted on a small scale, and the survey results showed that user satisfaction was high. Now, preparations have begun for the formal production and industrialization of the product (including intellectual property risk warning surveys).

Claims

1. A self-lubricating device for a rack of a steel transfer machine in a steelmaking plant, wherein a rack (1) is fixed on a guide rail of the frame, a gear (2) is provided on the steel transfer machine, the gear (2) on the steel transfer machine meshes with the rack (1) to drive the steel transfer machine to reciprocate on the guide rail, and a protective cover (3) is provided on the gear (2); characterized in that: It includes an oil storage tank (4) fixedly connected to a protective cover (3), an oil outlet pipe (5) connected to the oil storage tank (4), and a pressurizing device for pressurizing the grease in the oil storage tank (4); the outlet of the oil outlet pipe (5) faces the rack (1); there are two oil outlet pipes (5), which are respectively located on both sides of the oil storage tank (4).

2. The self-lubricating device for a steel transfer machine rack in a steelmaking plant according to claim 1, characterized in that: The pressurizing device includes a gas filling pipe (10) connected to the top of the oil storage tank (4) and a high-pressure gas tank (8) connected to the gas filling pipe (10); a pressure regulating valve (9) for adjusting the gas pressure inside the oil storage tank (4) is installed on the gas filling pipe (10).

3. A self-lubricating device for a steel transfer machine rack in a steelmaking plant according to claim 2, characterized in that: The high-pressure gas tank (8) is provided with an air outlet, and a pressure gauge (43) is provided on the air outlet; the air outlet is fixedly connected to the gas filling pipe (10).

4. A self-lubricating device for a steel transfer machine rack in a steelmaking plant according to claim 3, characterized in that: The pressurizing device also includes a sliding plate (41) slidably connected to the inner wall of the oil storage tank (4) and a tension spring (42) disposed between the sliding plate (41) and the top wall of the oil storage tank (4); the cavity between the sliding plate (41) and the top wall of the oil storage tank (4) is connected to the gas filling pipe (10).

5. A self-lubricating device for a steel transfer machine rack in a steelmaking plant according to claim 1, characterized in that: The oil outlet end of the oil outlet pipe (5) is provided with a flat refueling pipe (7); the length of the oil outlet of the flat refueling pipe (7) is adapted to the width of the rack (1).

6. A self-lubricating device for a steel transfer machine rack in a steelmaking plant according to claim 5, characterized in that: The flat refueling pipe (7) is provided with a flexible canvas bag (71) made of canvas. The canvas bag (71) extends into the teeth of the rack (1). The canvas bag is provided with mesh holes, and the diameter of the mesh holes is no greater than 0.2 mm.

7. A self-lubricating device for a rack of a steel transfer machine in a steel plant according to claim 1, characterized in that: A reinforcing rib (6) is provided between the oil outlet pipe (5) and the outer wall of the oil storage tank (4).

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