Brake sliding plate fault monitoring device for conveying steel pipes to cooling bed

Abstract

According to the brake sliding plate fault monitoring device used for conveying the steel pipes to the cooling bed, the contactor is arranged to be in linkage with the brake sliding plate, so that the contactor and the brake sliding plate can move synchronously, when the brake sliding plate is located at different positions, the contactor can be matched with contacts at different positions, and if the brake sliding plate breaks down, the contactor can be switched off. If the contactor is not matched, the contact of the contactor cannot be matched, and the alarm device can give a sound-light alarm to warn workers, so that the safety risk is greatly reduced, and the device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steelmaking, and particularly relates to a braking slide failure monitoring device for conveying steel pipes to a cooling bed. BACKGROUND

[0002] In a steelmaking plant, steel pipes coming out of a drawing machine are conveyed to a conveying roller way, conveyed to a cooling bed via a braking slide for natural cooling, and the braking slide needs to be lowered to a low position to catch the steel pipes on the conveying roller way and then raised to a high position to convey the steel pipes to the cooling bed, so as to realize upward feeding.

[0003] In actual operation, the conveying roller way is driven by a motor, so that the speed of the steel pipes conveyed from the lower end is relatively fast, and if the braking slide fails to be lowered to the low position or raised to the high position, the steel pipes conveyed from the lower end cannot be caught and conveyed to the cooling bed, and the steel pipes are prone to fly out directly, which causes a great safety hazard.

[0004] Therefore, the utility model aims to solve the technical problem of how to monitor the failure of the lifting slide. UTILITY MODEL CONTENTS

[0005] To solve the above-mentioned technical problem, the utility model provides a braking slide failure monitoring device for conveying steel pipes to a cooling bed.

[0006] The specific scheme is as follows:

[0007] A braking slide failure monitoring device for conveying steel pipes to a cooling bed, comprising a rack, a cooling bed arranged on the rack, an upper feeding device arranged on one side of the cooling bed, the upper feeding device comprising a conveying roller way and a lifting braking slide for conveying the steel pipes on the conveying roller way to the cooling bed, the conveying roller way being driven by a motor, and the motor being fixed on the rack; a rotating shaft is arranged at the lower end of the rack, at least two connecting pieces are fixed on the rotating shaft, the rotating shaft is connected with the piston rod of a hydraulic cylinder through the connecting pieces, so that the extension and retraction of the piston rod can drive the rotating shaft to rotate; the rotating shaft is connected with the braking slide through the connecting pieces, so that the rotation of the rotating shaft can drive the braking slide to move up and down; characterized in that: the rotating shaft is fixedly connected with a contactor, so that the rotation of the rotating shaft can drive the contactor to move, the contactor comprises at least one contact point, and when the braking slide is at different positions, the contactor can match the contact points at different positions; the contactor is electrically connected with a PLC controller and transmits signals to the PLC controller; the PLC controller is electrically connected with an alarm device and controls the alarm device to sound and light alarm.

[0008] The contactor comprises a moving contact fixedly connected with the rotating shaft and capable of moving synchronously with the rotating shaft, and two static contacts, i.e., a top static contact and a bottom static contact, arranged on the contactor body along the moving path of the moving contact.

[0009] The contactor is an electromagnetic contactor, a pneumatic contactor or a hydraulic contactor.

[0010] The contactor is an electromagnetic contactor, a pneumatic contactor or a hydraulic contactor.

[0011] The utility model discloses a kind of braking skid failure monitoring devices for conveying steel pipe to cooling bed, contactor is set with braking skid linkage, so that contactor can move synchronously with braking skid, when braking skid is in different positions, contactor can match the contact of different positions, if braking skid fails, the contact of contactor cannot match, alarm device will sound and light alarm to warn staff at this time, greatly reduce safety risk, and device structure is simple, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is loading device and cooling bed plan view.

[0013] Figure 2 It is side part sectional view when braking skid is in intermediate position.

[0014] Figure 3 It is the side view of connecting piece towards outside.

[0015] Figure 4 It is contactor schematic view.

[0016] Figure 5 It is the connection block diagram of the utility model.

[0017] Cooling bed 1, loading device 2, braking skid 21, conveying roller way 22, motor 23,

[0018] Rotating shaft 3, connecting piece 4, sleeve 41, ear plate 42, connecting rod 43, fixed part 44,

[0019] Hydraulic cylinder 5, contactor 6, moving contact 61, static contact 62, steel pipe 7, guide rail 8, DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the implementation of the utility model, rather than the whole implementation, and all other embodiments obtained by the ordinary skilled in the art without creative labor based on the embodiments of the utility model belong to the protection scope of the utility model.

[0021] As shown in Figures 1-5 The utility model provides a kind of brake skid failure monitoring device for conveying steel pipe to cooling bed, including rack, the rack is provided with cooling bed 1, one side of the cooling bed 1 is provided with feeding device 2, the feeding device 2 includes conveying roller way 22, and for conveying steel pipe 7 on conveying roller way 22 to the liftable brake skid 21 on cooling bed 1, conveying roller way 22 is driven by motor 23, the motor 23 is fixed on rack;Rack lower end is provided with rotating shaft 3, at least two connecting pieces 4 are fixed on the rotating shaft 3, rotating shaft 3 is connected with the piston rod of hydraulic cylinder 5 by connecting piece 4, so that the telescopic movement of piston rod can drive rotating shaft 3 to rotate;Rotating shaft 3 is connected with brake skid 21 by connecting piece 4, so that rotating shaft 3 can drive brake skid 21 to move up and down by rotating;

[0022] Rotating shaft 3 is fixedly connected with contactor 6, so that rotating shaft 3 can drive contactor 6 to move by rotating, the contactor 6 includes at least one contact point, when brake skid 21 is in different positions, contactor 6 can match the contact point of different positions;Contactor 6 is electrically connected with PLC controller, and signal transmission is carried out to PLC controller;The PLC controller is electrically connected with alarm device, and alarm device carries out audible and visual alarm.

[0023] The utility model provides a kind of brake skid failure monitoring device for conveying steel pipe to cooling bed, setting contactor and brake skid linkage, so that contactor can move synchronously with brake skid, when brake skid is in different positions, contactor can match the contact point of different positions, if brake skid fails, then the contact point of contactor cannot match, at this time alarm device will carry out audible and visual alarm to warn staff, greatly reduce the security risk, and device structure is simple, convenient to use.

[0024] It should be noted that, in the utility model, the connection between cooling bed, conveying roller way, brake skid and rotating shaft constitutes a whole called cooling bed structure, which is used for steel pipe cooling and adopts the cooling bed structure produced by Zhongye Saide Company;Contactor, PLC controller and alarm device transmit signals, which are prior art.

[0025] Specifically, as shown in Figures 1-3In this embodiment, the connecting member 4 includes a sleeve 41 sleeved on the rotating shaft 3. The sleeve 41 is keyed to the rotating shaft 3. The sleeve 41 extends upward and downward respectively, and a fixing part 44 is formed at the extension, so that the sleeve 41 is tightly connected to the rotating shaft 3. Bolts can be selected to pass through the upward and downward extensions of the sleeve 41 for fixing. The two ends of the sleeve 41 extend to the left or right to form two ear plates 42. The ends of the two ear plates 42 are provided with round holes for the connecting rod 43 to pass through. The connecting rod 43 can rotate in the round holes. That is, the two ear plates 42 are connected by the connecting rod 43. The output shaft of the motor 23 is connected to the roller, and the motor 23 drives the roller to rotate to realize the conveying of the steel pipe 7.

[0026] In this embodiment, the multiple connectors 4 on the rotating shaft 3 have different orientations. The connectors on the side of the ear plate 42 facing the cooling bed 1 are referred to as the inner connectors. Figure 2 As shown, the connector on the side of the ear plate 42 facing away from the cooling bed 1 is called the outer connector, such as... Figure 3 As shown.

[0027] by Figure 3 Taking the example for detailed explanation, the connecting rod 43 of the outer connector is fixed to the piston rod of the hydraulic cylinder 5. The extension and retraction of the piston rod drives the outer connector to move, which in turn drives the rotating shaft 3 to rotate. In actual operation, it changes back and forth between the dotted line a and the dotted line c. Figure 3 The line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 is located on a horizontal line, i.e., dashed line b. When the piston rod extends downward, it drives the connecting rod 43 to move downward, causing the rotating shaft 3 to rotate clockwise, so that the line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 changes from dashed line b to dashed line a. When the piston rod retracts upward, it drives the connecting rod 43 to move upward, causing the rotating shaft 3 to rotate counterclockwise, so that the line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 changes from dashed line b to dashed line c.

[0028] by Figure 2 For example, the connecting rod 43 of the inner connecting member is fixed to the bottom end of the brake slide plate 21. The rotation of the rotating shaft 3 drives the inner connecting member to move, which in turn drives the brake slide plate 21 to move. In actual operation, it changes back and forth between the dotted line A and the dotted line C. Figure 2 The line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 is located on a horizontal line, i.e., dashed line B. When the rotating shaft 3 rotates clockwise, it drives the ear plate 42 and the connecting rod 43 to move upward, so that the line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 changes from dashed line B to dashed line A, thereby driving the brake slide plate 21 to move upward, realizing the rise of the brake slide plate 22. When the rotating shaft 3 rotates counterclockwise, it drives the ear plate 42 and the connecting rod 43 to move downward, so that the line connecting the axis of the rotating shaft 3 and the center of the connecting rod 43 changes from dashed line B to dashed line C, thereby driving the brake slide plate 21 to move downward, realizing the descent of the brake slide plate 22.

[0029] That is, the piston rod extends downward, drives the rotating shaft 3 to rotate clockwise, and then drives the brake sliding plate 21 to rise; the piston rod retracts upward, drives the rotating shaft 3 to rotate counterclockwise, and then drives the brake sliding plate 21 to descend.

[0030] In the embodiment, the hydraulic cylinder 5 is selected, and other driving devices such as a motor or an oil cylinder can also be selected in actual operation as long as the driving function can be realized.

[0031] As shown in Figure 4 The contactor 6 includes one moving contact 61 and two static contacts 62, the moving contact 61 is fixedly connected with the rotating shaft 3 and can move synchronously with the rotating shaft 3, the two static contacts 62 are arranged on the contactor body along the movement path of the moving contact 61 and are respectively a top static contact and a bottom static contact, the contactor body is slidably connected with the sliding rail 8, and the sliding rail 8 is fixed on the ground. The contactor body is slidably arranged on the guide rail 8, the position of the contactor body can be adjusted, the distance between the static contact 62 and the moving contact 61 is adjusted to be appropriate, and the static contact 62 can be combined with the moving contact 61.

[0032] The contactor is an electromagnetic contactor, a pneumatic contactor or a hydraulic contactor, as long as the corresponding function can be realized, and the type of the contactor is not limited in the utility model.

[0033] The specific working process of the utility model is as follows:

[0034] When the brake sliding plate 22 works, the brake sliding plate 22 is lowered from the high position to the low position flush with the conveying roller way 21 to catch the steel pipe 7 on the conveying roller way 21, then is raised from the low position to the high position flush with the cooling bed 1 to convey the caught steel pipe 7 to the cooling bed 1, one cycle is completed, the transportation of one steel pipe 7 is completed, and the conveying of the next steel pipe is carried out in a reciprocating manner.

[0035] The utility model sets the contactor 6 in linkage with the brake sliding plate 22, so that the contactor 6 can move synchronously when the brake sliding plate 22 moves, the contactor 6 can be combined with the contacts at different positions when the brake sliding plate 22 is at different positions, and the corresponding signals are transmitted to the PLC controller, the PLC controller monitors the brake sliding plate 22 according to the received signals, and in essence, the monitoring is carried out according to whether the PLC controller receives the signals transmitted by the contactor 6, the preset time is set in the PLC controller, the preset time refers to that 1-2s is added to the time when the brake sliding plate 22 is lowered from the high position to the low position under normal working conditions, or 1-2s is added to the time when the brake sliding plate 22 is raised from the low position to the high position under normal working conditions.

[0036] When the piston rod of the hydraulic cylinder 5 extends downward, the outer connecting piece is driven to rotate clockwise, and the rotating shaft 3 is driven to rotate clockwise, and the inner connecting piece is driven to rotate clockwise, and the brake slide plate 22 is driven to rise, and when the brake slide plate 22 rises to the high position, the movable contact 61 is engaged with the bottom static contact, and the contactor transmits the signal of the engagement of the bottom static contact to the PLC controller.

[0037] When the piston rod of the hydraulic cylinder 5 retracts upward, the outer connecting piece is driven to rotate counterclockwise, and the rotating shaft 3 is driven to rotate counterclockwise, and the inner connecting piece is driven to rotate counterclockwise, and the brake slide plate 22 is driven to descend, and when the brake slide plate 22 descends to the low position, the movable contact 61 is engaged with the top static contact, and the contactor transmits the signal of the engagement of the top static contact to the PLC controller.

[0038] When the brake slide plate 22 fails, that is, the brake slide plate 22 cannot rise to the high position or descend to the low position, the movable contact 61 of the contactor 6 cannot reach the position capable of being engaged with the static contact 62, so that the movable contact 61 cannot be engaged with the static contact 62, and the contactor 6 cannot transmit the signal to the PLC controller, and after a preset time, the PLC controller still does not receive the signal of the contactor, and the alarm device is controlled to sound and light alarm to warn the staff.

[0039] That is, under normal working conditions, no matter whether the brake slide plate 22 rises to the high position or descends to the low position, the PLC controller can receive the signal transmitted by the contactor, and if the contactor 6 still does not transmit the signal to the PLC controller after a preset time, it indicates that the brake slide plate 22 fails to actuate to the position, and at this time, the alarm device is alarmed, so that by setting the contactor, whether the brake slide plate fails can be monitored in time, so as to reduce the personal safety risk to the staff.

[0040] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above-mentioned embodiments, and also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements are also regarded as the protection range of the utility model.

Claims

1. A kind of braking skid failure monitoring device for conveying steel pipe to cooling bed, including frame, the frame is provided with cooling bed (1), one side of the cooling bed (1) is provided with feeding device (2), the feeding device (2) includes conveying roller (22), and for the steel pipe (7) on conveying roller (22) is conveyed to the liftable braking skid (21) on cooling bed (1), conveying roller (22) is driven by motor (23), the motor (23) is fixed on frame;Frame lower end is provided with rotating shaft (3), at least two connecting pieces (4) are fixed on the rotating shaft (3), the piston rod of hydraulic cylinder (5) is connected with the rotating shaft (3) by connecting piece (4), so that the telescopic movement of piston rod can drive rotating shaft (3) rotation;Rotating shaft (3) is connected with braking skid (21) by connecting piece (4), so that rotating shaft (3) rotation can drive braking skid (21) up and down movement;Its characterized in that: The rotating shaft (3) is fixedly connected with the contactor (6), so that the rotation of the rotating shaft (3) can drive the contactor (6) to move, the contactor (6) comprises at least one contact point, the contactor (6) can match the contact points in different positions when the brake sliding plate (21) is in different positions; the contactor (6) is electrically connected with the PLC controller and transmits signals to the PLC controller; the PLC controller is electrically connected with the alarm device and controls the alarm device to sound and light alarm.

2. Brake skid failure monitoring apparatus according to claim 1, characterised in that: The contactor (6) comprises one moving contact point (61) and two static contact points (62), the moving contact point (61) is fixedly connected with the rotating shaft (3) and can move synchronously with the rotating shaft (3), the two static contact points (62) are arranged on the contactor body along the movement path of the moving contact point (61) and are respectively a top static contact point and a bottom static contact point, and the contactor body is slidingly connected with the slide rail (8) which is fixed on the ground.

3. The brake pad failure monitoring apparatus of claim 1, wherein: The contactor is an electromagnetic contactor, a pneumatic contactor or a hydraulic contactor.

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