Four-roller mill equipment with roller surface lubricating device

Abstract

The utility model relates to the technical field of rolling mills, and discloses four-roller rolling mill equipment with a roller surface lubricating device, which comprises a transverse plate, two vertical plates are symmetrically and fixedly connected to the upper surface of the transverse plate, and two supporting rollers are rotatably connected between the two vertical plates in a penetrating manner from top to bottom. Two working rollers are rotatably connected between the two vertical plates and the two supporting rollers in a penetrating mode from top to bottom, and a damping mechanism is arranged outside the transverse plate. A lubricating mechanism is arranged in front of the two vertical plates on the upper surface of the transverse plate; by arranging the damping mechanism, looseness and fatigue damage of parts caused by vibration are remarkably reduced, so that the service life of equipment is prolonged, the lubricating mechanism realizes efficient and uniform coating on the surface of the working roller, rolling friction force is reduced, roller surface abrasion and workpiece surface scratches are reduced, and the service life of the equipment is prolonged. And the roller surface temperature is effectively controlled through the cooling effect of the lubricating oil, and roller surface damage caused by local overheating is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rolling mill technical field, concretely is four roll mill equipment with roll surface lubricating device. BACKGROUND

[0002] Four roll mill is a kind of typical rolling equipment, is composed of a pair of small diameter work roll and a pair of large diameter support roll, and work roll is applied to metal blank to realize plastic deformation by pressure, and its core advantage is that support roll can greatly improve mill rigidity, and it is suitable for high-precision, high-strength rolling demand;

[0003] Then four roll mill in production process, due to the vibration, it is easy to cause the falling and damage of parts, not only shortens the service life of four roll mill, but also reduces work quality and work efficiency, adds trouble to work.

[0004] Chinese patent discloses a kind of four roll mill for stainless steel seamless steel tube production (authorized announcement No.CN210423568U), the patent technology:

[0005] When four roll mill body works and generates up and down vibration, drive fixed plate up and down vibration, by the mutual cooperation of mounting block, damping mechanism, connecting column, connecting block, damping buffer assembly and connecting rod, effectively offset the force of vibration, damping four roll mill body, solve the existing equipment generally does not have damping function, it is easy to cause the falling and damage of parts, not only shortens service life, but also reduces work quality and work efficiency, adds trouble to work.

[0006] However, it has certain drawbacks: when actually running, work roll and workpiece directly contact to cause severe dry friction, not only makes roll surface wear and tear rapidly and produces scratch, reduces roll life, while heat generated by friction causes local temperature of roll surface to rise sharply, easily causes material thermal damage and workpiece surface quality defect;In addition, ungreased rolling process vibration intensifies, noise increases, equipment stability declines, needs frequent shutdown maintenance. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing four roll mill equipment with roll surface lubricating device to solve the problems raised in the above background.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] Four roll mill equipment with roll surface lubricating device, including horizontal plate, the upper surface of the horizontal plate is symmetrically fixedly connected with two vertical plates, two support rolls are rotatably connected between the two vertical plates from top to bottom, and two work rolls are rotatably connected between the two vertical plates from top to bottom between the two support rolls, and the outer portion of the horizontal plate is provided with damping mechanism;

[0010] The upper surface of the transverse plate is provided with a lubricating mechanism in front of the two vertical plates, the lubricating mechanism comprises an oil tank, the upper end of the oil tank is fixedly connected with a tank cover, the inner left surface of the oil tank is fixedly connected with a filter cartridge, the upper surface of the tank cover is fixedly connected with a delivery pump, the oil inlet end of the delivery pump is fixedly connected with a pipeline one, the oil outlet end of the delivery pump is fixedly connected with a pipeline two, and the upper surface of the tank cover is provided with a lubricating part on the right side of the delivery pump.

[0011] As a further scheme of the utility model: the damping mechanism comprises a base, and a plurality of damping shock absorbers are fixedly connected to the lower surface of the base.

[0012] As a further scheme of the utility model: the lubricating part comprises a main pipe, a joint is fixedly connected to the left surface of the lower end of the main pipe and communicates with the inside of the main pipe, two branch pipes are fixedly connected to the rear surface of the main pipe from top to bottom and communicate with the inside of the main pipe, and sponge blocks are fixedly connected to the rear surface of the branch pipes.

[0013] As a further scheme of the utility model: the supporting roller is attached to the working roller, the oil tank is fixedly connected to the upper surface of the transverse plate, and the pipeline one is movably connected to the tank cover and movably penetrates the upper surface of the filter cartridge.

[0014] As a further scheme of the utility model: the transverse plate is movably arranged in the inside of the base, and the upper end of the damping shock absorber is fixedly connected to the lower surface of the transverse plate.

[0015] As a further scheme of the utility model: the lower end of the main pipe is fixedly connected to the upper surface of the tank cover, the pipeline two is fixedly connected to the outside of the joint, and the two sponge blocks are attached to the front surface of the two working rollers respectively.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The utility model discloses a damping mechanism is arranged, and the damping shock absorber in the damping mechanism adopts the cooperation of spring and damper, can effectively absorb the impact vibration energy generated in the rolling process, and converts vibration kinetic energy into heat energy dissipation through hydraulic damping or viscoelastic material, this design not only greatly reduces the equipment amplitude, avoids the occurrence of the resonance phenomenon, also significantly reduces the loosening and fatigue damage of parts caused by vibration, thereby prolongs the service life of the equipment, reduces the operation noise simultaneously, and improves the working environment.

[0018] 2. The utility model discloses a lubricating mechanism is provided with, and lubricating mechanism realizes the efficient even coating to the work roll surface, and through the cooperation of conveying pump and filter cartridge, the impurity filtration is completed in the conveying process of lubricating oil, and the cleanliness of lubricating medium is ensured, and the sponge block is used as lubricating medium carrier, can form even lubricating film continuously with the rotation of work roll, reduces the rolling friction, reduces roll surface wear and workpiece surface scratch, and the cooling effect of lubricating oil effectively controls roll surface temperature, avoids the roll surface damage caused by local overheating. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural diagram of four high rolling mill equipment with roll surface lubricating device;

[0020] Figure 2 It is the sectional view of damping mechanism in four high rolling mill equipment with roll surface lubricating device;

[0021] Figure 3 It is the structural diagram of lubricating mechanism in four high rolling mill equipment with roll surface lubricating device;

[0022] Figure 4 It is the structural diagram of lubricating part in four high rolling mill equipment with roll surface lubricating device.

[0023] In the drawing: 1, horizontal plate;2, vertical plate;3, support roll;4, work roll;5, damping mechanism;6, base;7, damping shock absorber;8, lubricating mechanism;9, oil tank;10, tank cover;11, filter cartridge;12, conveying pump;13, pipeline one;14, pipeline two;15, lubricating part;16, main pipe;17, joint;18, branch pipe;19, sponge block. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 In the embodiment of the utility model, four high rolling mill equipment with roll surface lubricating device, including horizontal plate 1, the upper surface of horizontal plate 1 is fixedly connected with two vertical plates 2, two vertical plates 2 are rotatably connected with two support rolls 3 from top to bottom between two vertical plates 2, and two work rolls 4 are rotatably connected from top to bottom between two support rolls 3 between two vertical plates 2, and the support roll 3 is attached to the work roll 4;

[0025] The left end of two support rolls 3 is connected with driving equipment (motor, speed reducer, shaft coupling, etc.), when running, one support roll 3 rotates clockwise, and the other rotates counterclockwise;

[0026] The support roll 3 is used for supporting the work roll 4, and the work roll 4 is used for rolling the workpiece.

[0027] In Figure 1 And Figure 2In the middle: the outer part of the cross plate 1 is provided with a damping mechanism 5, the damping mechanism 5 includes a base 6, the cross plate 1 is movably located in the inside of the base 6, a plurality of damping shock absorbers 7 are fixedly connected to the lower surface of the inside of the base 6, and the upper end of the damping shock absorber 7 is fixedly connected to the lower surface of the cross plate 1;

[0028] The damping shock absorber 7 is used for damping treatment of the entire rolling mill;

[0029] The damping shock absorber 7 includes:

[0030] Spring: providing elastic support and energy storage;

[0031] Damper: hydraulic damper (piston + oil), viscoelastic damping block or friction damping piece, responsible for energy dissipation;

[0032] Upper / lower mounting seat: fixing the spring and the damper, connecting the vibration source and the support foundation;

[0033] The working principle of the damping shock absorber 7 is to absorb vibration energy by the spring and store it as elastic potential energy, and at the same time, the damper (such as hydraulic oil, viscoelastic material or friction structure) generates resistance in relative motion, converts vibration kinetic energy into heat energy and dissipates, thereby effectively suppressing the reciprocating vibration of the system on the basis of buffering the impact force, reducing the amplitude and avoiding resonance, realizing the effect of rapid and smooth damping.

[0034] In Figure 1 , Figure 3 and Figure 4 In the middle: the upper surface of the cross plate 1 is located in front of the two vertical plates 2 and is provided with a lubricating mechanism 8, the lubricating mechanism 8 includes an oil tank 9, the oil tank 9 is fixedly connected to the upper surface of the cross plate 1, the upper end of the oil tank 9 is fixedly connected with a tank cover 10, the left side surface of the inside of the oil tank 9 is fixedly connected with a filter cartridge 11, the upper surface of the tank cover 10 is fixedly connected with a delivery pump 12, the oil inlet end of the delivery pump 12 is fixedly connected with a pipeline I 13, the pipeline I 13 movably penetrates the tank cover 10, and the pipeline I 13 movably penetrates the upper surface of the filter cartridge 11, the oil outlet end of the delivery pump 12 is fixedly connected with a pipeline II 14, the upper surface of the tank cover 10 is provided with a lubricating part 15 on the right side of the delivery pump 12, the lubricating part 15 includes a main pipe 16, the lower end of the left side surface of the main pipe 16 is fixedly connected with a connector 17 communicated with the inside of the main pipe 16, the pipeline II 14 is fixedly connected to the outside of the connector 17, two branch pipes 18 communicated with the inside of the main pipe 16 are fixedly connected to the rear side surface of the main pipe 16 from top to bottom, sponge blocks 19 are fixedly penetrated to the rear surface of the branch pipe 18, and the two sponge blocks 19 are respectively attached to the front surface of the two work rolls 4;

[0035] The conveying pump 12 is used to pump out the lubricating oil in the oil tank 9 and then deliver it to the lubricating part 15, and the lubricating oil is discharged into the sponge block 19 to coat the surface of the work roll 4, so as to reduce the friction between the work roll 4 and the workpiece, avoid the acceleration of the roll surface wear caused by severe friction, and cool the roll surface at the same time.

[0036] The filter cartridge 11 is used to filter impurities in the oil to avoid the impurities being delivered to the surface of the work roll 4.

[0037] The working principle of the utility model is as follows: when the rolling mill is running, the driving equipment drives the two supporting rollers 3 to rotate in opposite directions, the supporting rollers 3 drive the work roll 4 to rotate reversely synchronously through the adhesion friction with the work roll 4, and continuously roll-form the workpiece entering the roll gap; in the damping mechanism 5, the horizontal plate 1 is elastically connected with the base 6 through a plurality of damping shock absorbers 7, the spring absorbs the rolling impact vibration and stores energy, and the damper converts the vibration kinetic energy into heat energy dissipation through oil flow or material deformation, and suppresses the system resonance; in the lubricating mechanism 8, the conveying pump 12 delivers the lubricating oil in the oil tank 9 after being filtered through the filter cartridge 11 to the main pipe 16 through the pipeline one 13 and the pipeline two 14, and then the lubricating oil is evenly infiltrated into the sponge block 19 through the branch pipe 18, and the lubricating film is continuously coated on the roll surface by the sponge block 19 along with the rotation of the work roll 4, so that the friction reduction, wear protection and roll surface temperature control are realized.

[0038] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0039] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. Four-roller rolling mill equipment with roller surface lubricating device, comprising a horizontal plate (1), the upper surface of the horizontal plate (1) is symmetrically connected with two vertical plates (2), two supporting rollers (3) are rotatably connected between the two vertical plates (2) from top to bottom, two working rollers (4) are rotatably connected between the two vertical plates (2) from top to bottom between the two supporting rollers (3), and a damping mechanism (5) is arranged outside the horizontal plate (1); characterized in that a lubricating mechanism (8) is arranged on the upper surface of the horizontal plate (1) in front of the two vertical plates (2), the lubricating mechanism (8) comprises an oil tank (9), the upper end of the oil tank (9) is fixedly connected with a tank cover (10), the inner left surface of the oil tank (9) is fixedly connected with a filter cartridge (11), the upper surface of the tank cover (10) is fixedly connected with a delivery pump (12), the oil inlet end of the delivery pump (12) is fixedly connected with a pipeline one (13), the oil outlet end of the delivery pump (12) is fixedly connected with a pipeline two (14), and the upper surface of the tank cover (10) is provided with a lubricating part (15) on the right side of the delivery pump (12).

2. Four-high rolling mill plant with roll face lubrication according to claim 1, characterized in that The damping mechanism (5) comprises a base (6), and a plurality of damping shock absorbers (7) are fixedly connected to the inner lower surface of the base (6).

3. Four-high rolling mill plant with roll face lubrication according to claim 1, characterized in that The lubricating part (15) comprises a main pipe (16), the left side surface of the main pipe (16) is fixedly connected with a connector (17) communicated with the inside of the main pipe (16), and two branch pipes (18) communicated with the inside of the main pipe (16) are fixedly connected to the rear side surface of the main pipe (16) from top to bottom, and the rear surface of the branch pipe (18) is fixedly connected with a sponge block (19).

4. Four-high rolling mill plant with roll face lubrication according to claim 1, characterized in that The supporting roller (3) is attached to the working roller (4), the oil tank (9) is fixedly connected to the upper surface of the horizontal plate (1), the pipeline one (13) is movably connected through the tank cover (10), and the pipeline one (13) is movably connected through the upper surface of the filter cartridge (11).

5. Four-high rolling mill plant with roll face lubrication according to claim 2, characterized in that The horizontal plate (1) is movably arranged in the inside of the base (6), and the upper end of the damping shock absorber (7) is fixedly connected to the lower surface of the horizontal plate (1).

6. Four-high rolling mill plant with roll face lubrication according to claim 3, characterized in that The lower end of the main pipe (16) is fixedly connected to the upper surface of the tank cover (10), the pipeline two (14) is fixedly connected to the outside of the connector (17), and the two sponge blocks (19) are respectively attached to the front surfaces of the two working rollers (4).

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