Ladle emergency rotation control valve group

Abstract

The present invention relates to a ladle accident rotation control valve group, belonging to the technical field of continuous casting equipment in the metallurgical industry. The technical scheme is: a left and right stack of hydraulic valves are installed on the front of an integrated block (1), the left stack has a manual motor reversing valve (2) on the top, a superimposed one-way throttle valve (4) in the middle, and a relief valve (5) below, and the right stack has a manual clutch reversing valve (6) on the top and a pressure reducing valve (8) below; a pressure oil pipe joint (3), a return oil pipe joint (11) and a leakage oil pipe joint (12) are installed on the bottom of the integrated block (1); a lower flange (13), an upper flange (14) and a clutch control oil pipe joint (15) are installed on the back of the integrated block (1). The beneficial effect of the present invention is that the ladle turret can be rotated in an accident state, avoiding major production accidents. The phenomenon that the ladle turret cannot be driven due to electrical power failure or burning in an accident state and malfunction of the hydraulic valve is eliminated.

Description

Technical Field

[0001] The invention relates to a ladle accident rotation control valve group, belonging to the technical field of continuous casting equipment in the metallurgical industry. Background Art

[0002] The ladle turret is an important equipment in the continuous casting machine. Its function is to receive the ladle filled with molten steel sent by the steelmaking span, transfer the ladle to the pouring position of the continuous casting span for pouring, and rotate the empty ladle back to the steelmaking span after pouring. The ladle turret is driven by a reducer. One side connected to the two input shafts of the reducer is a motor. When the ladle turret works normally, the motor drives the reducer, which is a normal drive. The other input end of the reducer is connected to the hydraulic motor. When the main power supply or motor equipment of the whole plant fails, the hydraulic motor drives the reducer by the hydraulic energy stored in the accumulator of the hydraulic system, which is an accident drive. The current ladle accident rotation device has the following problems: the control of the hydraulic clutch in the ladle accident rotation control valve group adopts electrical control or hydraulic control. When the ladle turret is in an accident state, the electrical system is often burned and the electrical control cannot be used; or because the hydraulic valve has not been used for a long time, the valve core is blocked and the hydraulic clutch cannot be operated to achieve accident drive, so that the ladle accident rotation cannot achieve the intended purpose.

[0003] When the ladle turret rotates normally, the hydraulic motor rotates slavedly. The hydraulic motor rotates slavedly at high speed for a long time, which reduces the service life of the hydraulic motor and improves the reliability of accident drive. Summary of the invention

[0004] The purpose of the present invention is to provide a ladle accident rotation control valve group, which can improve the reliability of the ladle accident rotation and solve the problems existing in the background technology.

[0005] The technical solution of the present invention is:

[0006] A ladle accident rotation control valve group, comprising an integrated block, a manual motor reversing valve, a pressure oil pipe joint, a superimposed one-way throttle valve, a relief valve, a manual clutch reversing valve, a pressure reducing valve, a hydraulic clutch, a hydraulic motor, a return oil pipe joint, a leakage oil pipe joint, a lower flange, an upper flange and a clutch control oil pipe joint. The front of the integrated block is equipped with left and right stacks of hydraulic valves. The uppermost stack of the left stack is a manual motor reversing valve, the middle is a superimposed one-way throttle valve, and the lower is a relief valve. The upper stack of the right stack is a manual clutch reversing valve, and the lower is a pressure reducing valve. The lower stack of the integrated block is equipped with a pressure oil pipe joint, a return oil pipe joint and a leakage oil pipe joint. The pressure oil pipe joint is connected to the pressure oil pipeline of the hydraulic system. The pressure entering through the pressure oil pipe joint The oil enters the hydraulic clutch through the pressure reducing valve and the manual clutch reversing valve, the return oil pipe joint is connected to the return oil pipeline, and the leakage oil pipe joint is connected to the leakage oil pipeline; the back of the integrated block is equipped with a lower flange, an upper flange and a clutch control oil pipe joint. The pressure oil entering from the pressure oil pipe joint enters the left oil port of the hydraulic motor through the hydraulic pipeline connected to the upper flange through the manual motor reversing valve, the superimposed one-way throttle valve, and the overflow valve, and is connected to the right oil port of the hydraulic motor through the hydraulic pipeline connected to the lower flange. The hydraulic oil at the right oil port of the hydraulic motor flows back to the oil tank through the overflow valve, the superimposed one-way throttle valve, the manual motor reversing valve, the return oil pipe joint and the return oil pipeline, and the clutch control oil pipe joint is connected to the hydraulic clutch through the hydraulic pipeline.

[0007] The hydraulic motor is engaged with the coupling of the ladle turret reducer.

[0008] The hydraulic motor is drivingly connected to the ladle turret.

[0009] The manual motor reversing valve and the manual clutch reversing valve are both provided with operating handles.

[0010] The beneficial effects of the present invention are: the ladle turret is rotated in an accident state by operating the manual motor reversing valve and the manual clutch reversing valve, thereby avoiding major production accidents, being safe and reliable. The phenomenon that the ladle turret cannot drive the turret due to power failure or burning of the ladle turret in an accident state and malfunction of the hydraulic valve is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of the ladle accident rotation control valve group of the present invention;

[0012] Figure 2 This is a front view of the ladle accident rotation control valve group of the present invention;

[0013] Figure 3 This is a rear view of the ladle accident rotation control valve group of the present invention;

[0014] Figure 4 It is a left view of the ladle accident rotation control valve group of the present invention;

[0015] Figure 5 This is a bottom view of the ladle accident rotation control valve group of the present invention;

[0016] Figure 6 It is a top view of the ladle accident rotation control valve group of the present invention;

[0017] Figure 7 This is a hydraulic principle diagram of the ladle emergency rotary control valve of the present invention;

[0018] In the figure: integrated block 1, manual motor reversing valve 2, pressure oil pipe joint 3, superimposed one-way throttle valve 4, relief valve 5, manual clutch reversing valve 6, coupling 7, pressure reducing valve 8, hydraulic clutch 9, hydraulic motor 10, return oil pipe joint 11, leakage oil pipe joint 12, lower flange 13, upper flange 14, clutch control oil pipe joint 15, ladle accident rotation control valve group 16. DETAILED DESCRIPTION

[0019] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0020] See attached Figure 1-7 A ladle accident rotation control valve group comprises an integrated block 1, a manual motor reversing valve 2, a pressure oil pipe joint 3, a superimposed one-way throttle valve 4, a relief valve 5, a manual clutch reversing valve 6, a pressure reducing valve 8, a hydraulic clutch 9, a hydraulic motor 10, a return oil pipe joint 11, a leakage oil pipe joint 12, a lower flange 13, an upper flange 14 and a clutch control oil pipe joint 15. The front of the integrated block 1 is equipped with left and right stacks of hydraulic valves. The top of the left stack is the manual motor reversing valve 2, the middle is the superimposed one-way throttle valve 4, and the bottom is the relief valve 5. The top of the right stack is the manual clutch reversing valve 6, and the bottom is the pressure reducing valve 8; the bottom of the integrated block 1 is equipped with a pressure oil pipe joint 3, a return oil pipe joint 11 and a leakage oil pipe joint 12. The pressure oil pipe joint 3 is connected to the pressure oil pipeline of the hydraulic system. The pressure entering from the pressure oil pipe joint 3 The oil enters the hydraulic clutch 9 through the pressure reducing valve 8 and the manual clutch reversing valve 6, the return oil pipe joint 11 is connected to the return oil pipeline, and the leakage oil pipe joint 12 is connected to the leakage oil pipeline; the back of the integrated block 1 is installed with a lower flange 13, an upper flange 14 and a clutch control oil pipe joint 15, the pressure oil entering from the pressure oil pipe joint 3 enters the left oil port of the hydraulic motor 10 through the hydraulic pipeline connected to the upper flange 14 through the manual motor reversing valve 2, the superimposed one-way throttle valve 4, and the overflow valve 5, and is connected to the right oil port of the hydraulic motor 10 through the hydraulic pipeline connected to the lower flange 13. The hydraulic oil at the right oil port of the hydraulic motor 10 flows back to the oil tank through the overflow valve 5, the superimposed one-way throttle valve 4, the manual motor reversing valve 2, the return oil pipe joint 11 and the return oil pipeline, and the clutch control oil pipe joint 15 is connected to the hydraulic clutch 9 through the hydraulic pipeline.

[0021] In this embodiment, the models and specifications of the hydraulic components in the ladle emergency rotation control valve group 16 are as follows:

[0022] Manual motor reversing valve 2 DG17V4-016C-10

[0023] Pressure oil pipe connector 3 JB966-77 28 / M33X2

[0024] Superimposed one-way throttle valve 4 DGMFN-5-X-A2W-B2W-30

[0025] Relief valve 5 DGMC2-5-AB-GW-BA-GW-30

[0026] Manual clutch reversing valve 6 DG17V-3-6C-60

[0027] Pressure reducing valve 8 DGMX2-3-PP-FW-B-40

[0028] Hydraulic Hydraulic Clutch 9 YLH40 / 55

[0029] Hydraulic motor 10 A2F107W6.1P

[0030] Oil return pipe joint 11 JB966-77 28 / M33X2

[0031] Leakage oil pipe joint 12 MC-JB966 18 / 22X1.5

[0032] Lower flange 1 H-SFS 6003 30X4

[0033] Upper flange 14 H-SFS 6003 30X4

[0034] Clutch control oil pipe connector 15 MC-JB966 16 / 22X1.5

[0035] The overflow valve 5 has the function of limiting pressure and overflow, which plays a safety role. By adjusting the throttle handle of the superimposed one-way throttle valve 4, the speed of the ladle turret in the clockwise and counterclockwise directions can be adjusted. The manual motor reversing valve 2 and the manual clutch reversing valve 6 are both equipped with operating handles.

[0036] Attached Figure 7 This is the hydraulic principle diagram of the ladle emergency rotary control valve. Among them, MA, MB, ML are pressure measuring points, P is the pressure oil pipe, T is the return oil pipe, and L is the drain oil pipe.

[0037] The working process of the ladle accident rotation control valve group 16 is as follows:

[0038] 1. Standby mode

[0039] When the ladle accident rotation control valve group 16 is in standby state, the operating handles of the manual clutch reversing valve 6 and the manual motor reversing valve 2 are in the middle position, and the hydraulic oil inside the hydraulic clutch 9 flows back to the oil tank through the manual clutch reversing valve 6, the leakage oil pipe joint 12 on the integrated block 1 and the leakage oil pipe. The left and right oil ports of the hydraulic motor 10 are connected to the return oil pipe connected to the return oil pipe joint 11 through the hydraulic pipeline and the motor reversing valve 2. Both the hydraulic motor 10 and the hydraulic clutch 9 are not working.

[0040] 2. Working status

[0041] When the ladle turret is in an accident state, the post operator first pulls the handle of the manual clutch reversing valve 6 to the a end, and the pressure oil entering from the pressure oil pipe joint 3 of the integrated block 1 enters the hydraulic clutch 9 through the pressure reducing valve 8 and the manual clutch reversing valve 6. The hydraulic clutch 9 engages the hydraulic motor 10 with the coupling 7 of the reducer. The post operator pulls the handle of the manual motor reversing valve 2 to the c end, and the pressure oil entering from the pressure oil pipe joint 3 of the integrated block 1 enters the left oil port of the hydraulic motor 10 through the manual motor reversing valve 2, the superimposed one-way throttle valve 4, and the relief valve 5, driving the hydraulic motor 10 to drive the ladle turret to rotate. The hydraulic oil at the right oil port of the hydraulic motor 10 flows back to the oil tank through the relief valve 5, the superimposed one-way throttle valve 4, the manual motor reversing valve 2, the return oil pipe joint 11 of the integrated block 1 and the return oil pipeline connected thereto. When the ladle turret rotates to a safe position, the operator releases the handle of the manual motor reversing valve 2 to place it in the middle position, and at the same time releases the handle of the manual clutch reversing valve 6 to place it in the middle position, and the ladle emergency rotation operation is completed.

Claims

1. A ladle accident rotation control valve group, characterized in that: The manifold (1) comprises a manifold (1), a manual motor reversing valve (2), a pressure oil pipe joint (3), a superimposed one-way throttle valve (4), a relief valve (5), a manual clutch reversing valve (6), a pressure reducing valve (8), a hydraulic clutch (9), a hydraulic motor (10), a return oil pipe joint (11), a leakage oil pipe joint (12), a lower flange (13), an upper flange (14) and a clutch control oil pipe joint (15). The front of the manifold (1) is provided with left and right stacks of hydraulic valves. The top of the left stack is the manual motor reversing valve (2), and the middle is the superimposed one-way throttle valve (4). ), below is the overflow valve (5), on the right is the manual clutch reversing valve (6), below is the pressure reducing valve (8); under the integrated block (1) are installed a pressure oil pipe joint (3), a return oil pipe joint (11) and a leakage oil pipe joint (12), the pressure oil pipe joint (3) is connected to the pressure oil pipeline of the hydraulic system, the pressure oil entering from the pressure oil pipe joint (3) enters the hydraulic clutch (9) through the pressure reducing valve (8) and the manual clutch reversing valve (6), the return oil pipe joint (11) is connected to the return oil pipeline, and the leakage oil pipe joint (12) is connected to the leakage oil pipeline; A lower flange (13), an upper flange (14) and a clutch control oil pipe joint (15) are installed on the back of the integrated block (1). The pressure oil entering from the pressure oil pipe joint (3) enters the left oil port of the hydraulic motor (10) through a hydraulic pipeline connected to the upper flange (14), a manual motor reversing valve (2), a superimposed one-way throttle valve (4) and a relief valve (5), and is connected to the right oil port of the hydraulic motor (10) through a hydraulic pipeline connected to the lower flange (13). The hydraulic oil at the right oil port of the hydraulic motor (10) flows back to the oil tank through the relief valve (5), the superimposed one-way throttle valve (4), the manual motor reversing valve (2), the return oil pipe joint (11) and the return oil pipe. The clutch control oil pipe joint (15) is connected to the hydraulic clutch (9) through a hydraulic pipeline. The hydraulic motor (10) is engaged with a coupling of a reducer of a ladle turret; The hydraulic motor (10) is drivingly connected to the ladle turret; The manual motor reversing valve (2) and the manual clutch reversing valve (6) are both provided with operating handles.

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