System for lubricating online guide of finished rolling mill

Abstract

The utility model discloses a system for lubricating an on-line guide of a finished rolling mill, which comprises a grease pump arranged below a platform of the finished rolling mill and positioned on one layer of a support frame; the oil separator is communicated with the conveying pipe; the oil separator is arranged close to the finished rolling mill; one end of the guide and guard oil distributing pipe is communicated with the oil distributor, the middle of the guide and guard oil distributing pipe penetrates through a finished product rolling mill platform, the other end of the guide and guard oil distributing pipe is close to a shaft pin of a guide roller bearing of the online guide and guard, so that lubricating oil from a dry oil pump continuously flows into the shaft pin of the online guide and guard, and waste steel or steel disqualification caused by oil shortage locking of a guide roller of the online guide and guard is avoided; the connecting shaft overhauling pipe is used for adding lubricating oil from the grease pump into an oil injection hole of a connecting shaft of the finished rolling mill when the finished rolling mill is overhauled; the lubricating device can be used for oiling and lubricating the guide roller of the on-line guide during steel passing, so that the guide roller cannot be locked due to oil shortage of a guide roller bearing, and waste steel and batch unqualified products are avoided.

Description

Technical Field

[0001] The utility model belongs to the field of steel production, and in particular relates to a system for lubricating an online guide of a finished product rolling mill. Background Art

[0002] A finished rolling mill consists of rolls, roll bearings, a frame, rails, a roll adjustment device, an upper roll balancing device, and a roll changing device. The rolls are the components that cause plastic deformation of metals; the roll bearings support the rolls and maintain their fixed position in the frame. Rolling bearings have high rigidity and low friction coefficients and are mostly used for working rolls in plate and strip mills. Sliding bearings come in two types: semi-dry friction and liquid friction, and different types of sliding bearings are suitable for different rolling mill types. Rolling mill frames mainly come in closed and open types. Closed frames offer high strength and rigidity and are used in blooming mills and plate and strip mills with high rolling forces. Rails are used to mount the frame and secure it to the foundation. The roll adjustment device is used to adjust the roll gap, and upper roll adjustment devices are available in manual, electric, and hydraulic configurations. The upper roll balancing device is used to lift the upper roll and prevent impact when the workpiece enters and exits the rolls. There are various roll changing methods, but rolling mills currently mostly use fast automatic roll changing devices, which shorten roll changing times.

[0003] During the steel rolling production process, online guides need to be refueled inside the guide rollers before going online, and lubricated after going offline. During the online guide period, due to limited space, personnel are unable to refuel and lubricate online in time, resulting in low online utilization rate of the guide rollers, and the guide rollers are prone to locking due to lack of oil, resulting in scrap steel and batches of unqualified products. Utility Model Content

[0004] The purpose of the utility model is to provide a system for lubricating the online guides of the finished rolling mill, so as to solve the problem that the online guide rollers are not able to be lubricated in time due to limited space during the operation of the online guides, resulting in low online utilization rate of the guide rollers, and the guide rollers are prone to locking due to lack of oil, resulting in scrap steel and batches of unqualified products.

[0005] The utility model adopts the following technical solution: a system for lubricating the online guide of the finished product rolling mill, comprising:

[0006] The dry oil pump is installed below the finished product mill platform and on the first floor of the support frame; the finished product mill is located on the second floor of the support frame; the dry oil pump delivers lubricating oil to the top of the finished product mill platform through a delivery pipe;

[0007] An oil separator is connected to the delivery pipe; the oil separator is arranged close to the finished product rolling mill;

[0008] The guide oil distribution pipe has one end connected to the oil separator, the middle of which passes through the finished rolling mill platform, and the other end is close to the shaft pin of the guide roller bearing of the online guide. This allows the lubricating oil from the dry oil pump to continuously flow into the shaft pin of the online guide, preventing the online guide from locking the guide roller due to lack of oil, resulting in scrap steel or unqualified steel;

[0009] The connecting shaft inspection pipe has one end connected to the oil separator, the middle of which passes through the finished rolling mill platform, and the other end is close to the oil filling hole of the connecting shaft of the finished rolling mill, so that lubricating oil from the dry oil pump can be added to the oil filling hole of the connecting shaft of the finished rolling mill when inspecting the finished rolling mill.

[0010] Furthermore, it also includes:

[0011] The looper maintenance pipe has one end connected to the oil separator, the middle part of which passes through the finished rolling mill platform, and the other end is close to the oil filling hole of the looper of the finished rolling mill, so that lubricating oil from the dry oil pump can be added to the oil filling hole of the looper of the finished rolling mill when repairing the finished rolling mill.

[0012] Furthermore, it also includes:

[0013] The rolling mill bearing maintenance pipe has one end connected to the oil separator, the middle of which passes through the finished rolling mill platform, and the other end is close to the oil filling hole of the bearing of the finished rolling mill, so that lubricating oil from the dry oil pump can be added to the oil filling hole of the bearing of the finished rolling mill when the finished rolling mill is being repaired.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can lubricate the guide rollers of the online guide during steel passing, ensuring that the guide roller bearings will not be locked due to lack of oil, thus avoiding the generation of scrap steel and batches of unqualified products;

[0016] The utility model can not only meet the lubrication of the online guide, but also can add lubricating oil to various parts of the rolling mill during maintenance, thereby increasing the use range of the dry oil pump and reducing costs;

[0017] The utility model places the dry oil pump below the finished product rolling mill platform and on a layer of the supporting frame, which can avoid the dry oil pump affecting space transportation and add lubricating oil to the online guide while ensuring smooth space transportation around the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the utility model.

[0019] Among them: 1. Dry oil pump; 2. Oil separator; 3. Guide oil distribution pipe; 4. Connecting shaft maintenance pipe; 5. Loop maintenance pipe; 6. Rolling mill bearing maintenance pipe. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] The utility model discloses a system for lubricating the online guide of the finished product rolling mill, such as Figure 1 As shown, it includes a dry oil pump 1, an oil separator 2, a guide oil distribution pipe 3, and a connecting shaft maintenance pipe 4.

[0023] The dry oil pump 1 is installed below the finished product rolling mill platform and is located on the first floor of the support frame; the finished product rolling mill is located on the second floor of the support frame; the dry oil pump 1 delivers lubricating oil to the top of the finished product rolling mill platform through a delivery pipe.

[0024] The oil separator 2 is connected to the delivery pipe; the oil separator 2 is arranged close to the finished rolling mill; one end of the guide oil separator 3 is connected to the oil separator 2, the middle part of the guide oil separator 3 passes through the finished rolling mill platform, and the other end of the guide oil separator 3 is close to the shaft pin of the guide roller bearing of the online guide, so that the lubricating oil from the dry oil pump 1 continuously flows into the shaft pin of the online guide, avoiding the online guide from locking the guide roller due to lack of oil, resulting in scrap steel or unqualified steel.

[0025] One end of the connecting shaft inspection pipe 4 is connected to the oil separator 2, the middle part of the connecting shaft inspection pipe 4 passes through the finished rolling mill platform, and the other end of the connecting shaft inspection pipe 4 is close to the oil filling hole of the connecting shaft of the finished rolling mill, so that lubricating oil from the dry oil pump 1 is added to the oil filling hole of the connecting shaft of the finished rolling mill when inspecting the finished rolling mill.

[0026] The utility model also includes: a looper maintenance pipe 5, one end of the looper maintenance pipe 5 is connected to the oil separator 2, the middle part of the looper maintenance pipe 5 passes through the finished rolling mill platform, and the other end of the looper maintenance pipe 5 is close to the oil filling hole of the looper of the finished rolling mill, so that lubricating oil from the dry oil pump 1 is added to the oil filling hole of the looper of the finished rolling mill when repairing the finished rolling mill.

[0027] The present invention also includes: a rolling mill bearing maintenance pipe 6, one end of the rolling mill bearing maintenance pipe 6 is connected to the oil separator 2, the middle part of the rolling mill bearing maintenance pipe 6 passes through the finished rolling mill platform, and the other end of the rolling mill bearing maintenance pipe 6 is close to the oil filling hole of the bearing of the finished rolling mill, so that lubricating oil from the dry oil pump 1 is added to the oil filling hole of the bearing of the finished rolling mill when repairing the finished rolling mill.

[0028] Example 1

[0029] The finished product rolling mill of a certain steel plant needs to refuel the guide rollers before going online and lubricate them after going offline. However, due to limited space, the personnel were unable to refuel and lubricate the guide rollers in time during the online guide period. As a result, the guide rollers often lacked oil and locked. This happened an average of twice a month, resulting in 10 tons of unqualified steel each time. The cost of each ton of steel was 4,000 yuan, totaling 80,000 yuan per month, resulting in a loss of 8*12=960,000 yuan per year.

[0030] Since the use of the lubrication system of the utility model, the problem of the guide roller of the online guide being locked due to lack of oil has been completely solved, which is equivalent to saving 960,000 yuan per year.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for lubricating the online guide of a finished product rolling mill, characterized in that: include: A dry oil pump (1) is installed below the finished product mill platform and located on a layer of the support frame; The finished product rolling mill is located on the second floor of the support frame; The dry oil pump (1) delivers lubricating oil to the top of the finished product rolling mill platform through a delivery pipe; An oil separator (2) is connected to the delivery pipe; the oil separator (2) is arranged close to the finished product rolling mill; A guide oil distribution pipe (3) is connected to the oil distributor (2) at one end, and the middle portion thereof passes through the finished rolling mill platform. The other end of the guide oil distribution pipe (3) is close to the shaft pin of the guide roller bearing of the online guide, thereby allowing the lubricating oil from the dry oil pump (1) to continuously flow into the shaft pin of the online guide, thereby preventing the online guide from locking the guide roller due to lack of oil, resulting in scrap steel or unqualified steel; The connecting shaft inspection pipe (4) has one end connected to the oil separator (2), the middle portion of which passes through the finished rolling mill platform, and the other end of which is close to the oil filling hole of the connecting shaft of the finished rolling mill, so that lubricating oil from the dry oil pump (1) can be added to the oil filling hole of the connecting shaft of the finished rolling mill when the finished rolling mill is inspected.

2. A system for lubricating an online guide of a finished product rolling mill according to claim 1, characterized in that: Also includes: A looper inspection pipe (5) has one end connected to the oil separator (2), the middle portion of which passes through the finished rolling mill platform, and the other end of which is close to the oil filling hole of the looper of the finished rolling mill, thereby allowing lubricating oil from the dry oil pump (1) to be added to the oil filling hole of the looper of the finished rolling mill when inspecting the finished rolling mill.

3. A system for lubricating an online guide of a finished product rolling mill according to claim 1, characterized in that: Also includes: A rolling mill bearing inspection pipe (6) has one end connected to the oil separator (2), the middle portion of which passes through the finished rolling mill platform, and the other end of which is close to the oil filling hole of the bearing of the finished rolling mill, thereby allowing lubricating oil from the dry oil pump (1) to be added to the oil filling hole of the bearing of the finished rolling mill when inspecting the finished rolling mill.

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