Oxygen lance transition carriage locking device

Abstract

The utility model relates to an oxygen lance traverse carriage locking device which comprises a switch frame, an electric-hydraulic push rod and a positioning plate, an electric-hydraulic push rod fork head at the top of the electric-hydraulic push rod is inserted into a U-shaped groove of the positioning plate, a pin shaft is arranged on the electric-hydraulic push rod and located on one side of the switch frame, the pin shaft is connected with a spring approaching body, and round steel is vertically arranged on the upper side and the lower side of the spring approaching body. Springs are coaxially arranged on the outer side of the round steel, locking and limiting induction parts are arranged at the free ends of the springs on the two sides, and locking and limiting proximity switches are arranged on the switch frames at the coaxial line corresponding positions of the locking and limiting induction parts on the upper side and the lower side. The oxygen lance transition carriage locking device further comprises walking limiting proximity switches, the walking limiting proximity switches are horizontally and symmetrically arranged on the two sides of the switch frame, the oxygen lance transition carriage locking device has the advantages that proximity signals are guaranteed to be accurately transmitted, signal transmission is accurate, the transition carriage is accurately positioned, the problem that signals are lost in the positioning and locking process of the locking device is solved, and the service life of the locking device is prolonged. And the stability of steelmaking production operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen lance transverse moving vehicle positioning, in particular to an oxygen lance transverse moving vehicle locking device. Background Art

[0002] Each converter has two sets of oxygen lance transverse transfer cars. When one transverse transfer car is in the operating position, the other is waiting in the standby position. During use, the oxygen lance in the operating position needs to be repaired regularly due to factors such as slag hanging, steel hanging or replacement of nozzles.

[0003] At present, the conventional transverse trolley travel positioning is based on the mechanical travel switch installed next to the oxygen gun winch platform for positioning. Compared with the mechanical travel switch, it is easy to get stuck and mechanical failure. The Chinese utility model patent with the authorization announcement number CN215560426U discloses "an oxygen gun transverse trolley locking mechanism and device". Through the roller group installed on the fork head of the electro-hydraulic push rod, the fork head of the electro-hydraulic push rod is pushed into the U-shaped groove of the transverse trolley positioning plate to play a locking role, so that the transverse trolley can be centered. The sensing part is connected to one end of the pin shaft of the roller group, and the proximity switch is placed horizontally on the other side. This mechanism only uses the sensing switch to complete the locking of the transverse trolley. The transverse trolley positioning still uses mechanical positioning, which is easy to fail and the positioning is inaccurate. Moreover, the proximity switch and the sensor used for locking are easily blocked by dust, the signal transmission is weak, the signal is easily lost, the transverse trolley positioning is inaccurate or even fails. Summary of the invention

[0004] In order to solve the technical problem of inaccurate positioning of the oxygen lance transverse vehicle, the utility model provides an oxygen lance transverse vehicle locking device, which accurately positions the transverse vehicle by replacing the mechanical switch with a proximity switch, and during the positioning process, the end face of the horizontal travel limit proximity switch is cleaned by a brush before the proximity sensing with the travel limit sensing part, to ensure accurate transmission of the proximity sensing signal, and the surface-to-surface close contact transmission sensing signal between the locking limit proximity switch and the locking limit sensing part of the positioning electro-hydraulic push rod inserted into the U-shaped groove of the positioning plate, so that the signal transmission is accurate, the transverse vehicle positioning and locking is accurate, and the travel limit sensing part is installed on the transverse vehicle positioning plate for easy maintenance and repair, and the sensing mode of the locking limit proximity switch is changed from proximity sensing to direct contact sensing, which solves the problem of signal loss during the positioning process of the locking device and improves the stability of steelmaking production operation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An oxygen gun transverse shift vehicle locking device comprises a switch frame, an electro-hydraulic push rod and a positioning plate, wherein the electro-hydraulic push rod fork at the top of the electro-hydraulic push rod is inserted into the U-shaped groove of the positioning plate, the electro-hydraulic push rod is arranged on one side of the switch frame, a pin is arranged on the electro-hydraulic push rod on one side of the switch frame, the pin is connected to a spring approach body, round steel is vertically arranged on the upper and lower sides of the spring approach body, a spring is coaxially arranged on the outer side of the round steel, coaxial locking limit sensing parts are arranged on the free ends of the springs on both sides, and locking limit proximity switches are arranged on the switch frame at the corresponding positions of the coaxial axes of the locking limit sensing parts on the upper and lower sides; the oxygen gun transverse shift vehicle locking device also includes a travel limit proximity switch, and the travel limit proximity switch is horizontally symmetrically arranged on both sides of the switch frame.

[0007] Furthermore, the positioning plate is located below the transverse track between the two wheels of the transverse vehicle, a long axis is arranged on the side plate surface of the positioning plate beside the U-shaped groove away from the travel limit proximity switch, a travel limit sensing part is arranged at the end of the long axis, and a brush is arranged horizontally and parallelly on the inner side of the travel limit proximity switch near the travel limit sensing part, and the travel limit proximity switch and the travel limit sensing part coincide with the axis line of the transverse vehicle positioning position.

[0008] Furthermore, the travel limit sensing portion and the travel limit proximity switch are 4 to 6 mm apart from each other at the end surfaces of the transverse vehicle positioning position.

[0009] Furthermore, the locking limit proximity switch, the locking limit sensing part and the spring are coaxial axis structures, and the coaxial axis is parallel to the axis of the electro-hydraulic push rod.

[0010] Furthermore, the stroke of the electro-hydraulic push rod is greater than the sum of the distances from the locking limit sensing portion to the locking limit proximity switch.

[0011] Furthermore, the locking limit proximity switch and the locking limit sensing part receive signals in a surface-to-surface contact manner.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the transverse vehicle moves toward the center of the converter, the brush on the positioning plate first cleans the end face of the travel limit proximity switch, and then the travel limit sensing part is brought close to the travel limit proximity switch. The proximity sensing transmits the signal to realize the positioning of the transverse vehicle, which can achieve more accurate positioning than traditional mechanical switches, avoid dust shielding the transmission signal, improve the signal transmission rate, avoid signal attenuation, and eliminate the occurrence of signal transmission failure accidents.

[0014] 2. The signal is transmitted by surface-to-surface contact induction between the locking limit proximity switch and the locking limit sensing part corresponding to the coaxial line to achieve the locking of the positioning plate and the electro-hydraulic push rod fork. The end face of the spring locking limit sensing part and the end face of the locking limit proximity switch are pressed tightly. Even if there is dust obstruction or the running track of the telescopic rod is offset, it will not affect the signal transmission. The signal transmission is timely and accurate, and the locking of the transverse vehicle is flexible and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of a locking device for an oxygen lance transverse vehicle.

[0016] Figure 2 The utility model is a front view schematic diagram of the locking state of the locking device of the oxygen lance transverse vehicle provided by the utility model.

[0017] Figure 3 The utility model is a front view schematic diagram of the unlocked state of the locking device of the oxygen lance transverse vehicle provided by the utility model.

[0018] Figure 4 It is a left side schematic diagram of the locking device of the oxygen lance transverse vehicle provided by the utility model.

[0019] Figure 5 The utility model is a top view schematic diagram of the locking device of the oxygen lance transverse vehicle.

[0020] Figure 6 It is a schematic diagram of the overall mechanism of the locking device and the transverse shifting vehicle provided by the utility model.

[0021] In the figure: 1-long axis; 2-brush; 3-travel limit sensing part; 4-travel limit proximity switch; 5-switch frame;

[0022] 6-lock limit proximity switch; 7-lock limit sensing part; 8-spring; 9-spring proximity body; 10-pin shaft;

[0023] 11-Electro-hydraulic push rod; 12-Track; 13-Roller; 14-Electro-hydraulic push rod fork; 15-Positioning plate; 16-Transverse vehicle;

[0024] 17- Transverse track. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 6As shown, the working principle of an oxygen gun transverse vehicle locking device is as follows: the transverse vehicle 16 moves transversely toward the center of the converter, and the brush 2 on the positioning plate 15 of the transverse vehicle 16 first cleans the dust on the end of the travel limit proximity switch 4, and then the travel limit proximity switch 4 corresponds to the axis of the travel limit sensing part 3, and the travel limit proximity switch 4 is proximity-sensed to transmit a positioning signal, the transverse vehicle 16 is accurately positioned, and the transverse movement is stopped, the electro-hydraulic push rod 11 moves upward, and the upper locking limit sensing part 7 and the locking limit proximity switch 6 are pressed tightly by the spring 8, and the upper locking limit sensing part 7 and the locking limit proximity switch 6 are in surface contact to transmit signals, and the electro-hydraulic push rod fork 14 is inserted into the U-shaped groove of the positioning plate 15, and the transverse vehicle 16 is accurately locked.

[0027] like Figure 1-Figure 6As shown, an oxygen gun transverse vehicle locking device comprises a switch frame 5, an electro-hydraulic push rod 11 and a positioning plate 15, wherein the electro-hydraulic push rod fork 14 at the top of the electro-hydraulic push rod 11 is inserted into the U-shaped groove of the positioning plate 15, the electro-hydraulic push rod 11 is arranged on one side of the switch frame 5, the electro-hydraulic push rod 11 is provided with a pin shaft 10 on one side of the switch frame 5, one end of the pin shaft 10 is connected to the electro-hydraulic push rod fork head 14 and a roller 13 and a track 12 for assisting the guiding function of the electro-hydraulic push rod 11, the roller 13 and the track 12 are arranged on both sides of the electro-hydraulic push rod fork head 14 to control the advancing direction of the electro-hydraulic push rod 11, and the pin shaft 10 moves the roller 13 It is connected in series with the electro-hydraulic push rod fork 14 for lifting, and the other end of the pin shaft 11 is connected to the spring approach body 9. Round steel is provided on the upper and lower sides of the spring approach body 9, and a spring 8 is coaxially provided on the outer side of the round steel. When the round steel restricts the spring 8 to be compressed, the compression trajectory will not bend. The free ends of the springs 8 on both sides are provided with coaxial locking limit sensing parts 7, and the locking limit sensing parts 7 on the upper and lower sides are provided with locking limit proximity switches 6 on the switch frame 5 at the corresponding positions of the coaxial line. When the transverse shifting vehicle 16 stops within the range of ±10mm of the center line of the converter, the electro-hydraulic push rod 11 extends to push the electro-hydraulic push rod fork 14 together with the roller 13 walks along the track 12, and the electro-hydraulic push rod fork 14 is pushed into the U-shaped groove of the positioning plate 15. At this time, the locking limit sensing part 7 contacts the locking limit proximity switch 6 face to face and sends a braking signal to the electro-hydraulic push rod 11, and the electro-hydraulic push rod fork 14 enters the locked state, the spring 8 above the spring proximity body 9 is compressed, and the upper locking limit sensing part 7 is close to the upper locking limit proximity switch 6. When the working position oxygen gun needs to be repaired or replaced, the electro-hydraulic push rod 11 is retracted to the initial position, that is, the unlocked state, the spring 8 below the spring proximity body 9 is compressed, and the lower locking limit sensing part 7 is close to the lower locking limit proximity switch. The switch 6 sends an unlocking signal to the travel limit proximity switch 4. After receiving the signal, the travel limit proximity switch 4 releases the positioning state, and the working position transverse shifting vehicle 16 is released from the positioning state and moves laterally away from the working position. The oxygen gun can be replaced after the working position transverse shifting vehicle 16 is moved away, and the spare position transverse shifting vehicle 16 moves to the working position to repeat the above positioning and locking process, and the spare position transverse shifting vehicle 16 continues to blow oxygen at the working position; the transverse shifting vehicle locking device also includes a travel limit proximity switch 4, and the travel limit proximity switch 4 is horizontally symmetrically arranged on both sides of the switch frame 5, which respectively corresponds to controlling the positioning work of the transverse shifting vehicle 16 on its own side.

[0028] like Figure 1-Figure 6As shown, further, the positioning plate 15 is located below the transverse track 17 between the two wheels of the transverse vehicle 16, and a long axis 1 is arranged on the side plate surface of the positioning plate 15 U-shaped groove away from the travel limit proximity switch 4, and a travel limit sensing part 3 is arranged at the end of the long axis 1. The travel limit sensing part 3 is horizontally arranged in parallel with the inner side of the travel limit proximity switch 4. During the transverse movement of the transverse vehicle 16, the brush 2 first passes through the travel limit proximity switch 4, and after cleaning the dust of the travel limit proximity switch 4, the travel limit proximity switch 4 is then moved. Corresponding to the travel limit sensing part 3, the travel limit proximity switch 4 receives the sensing signal more clearly and accurately. The positions of the long axis 1, the travel limit sensing part 3 and the brush 2 on the two sets of transverse movement vehicle 16 positioning plates 15 are symmetrical on the left and right. The positioning principles of the two sets of transverse movement vehicles 16 are the same. The travel limit proximity switch 4 coincides with the axis of the travel limit sensing part 3 at the positioning position of the transverse movement vehicle 16. At this time, the travel limit proximity switch 4 and the travel limit sensing part 3 face to face for proximity sensing, transmit the positioning signal, and accurately locate the position of the transverse movement vehicle 16.

[0029] Furthermore, when the travel limit sensing part 3 and the travel limit proximity switch 4 are at the positioning position of the transverse moving vehicle 16, the distance between the end surfaces is 4 to 6 mm.

[0030] like Figure 1 As shown, further, the locking limit proximity switch 6, the locking limit sensing part 7 and the spring 8 are coaxial axis structures, and the coaxial axis is parallel to the axis of the electro-hydraulic push rod 11.

[0031] Furthermore, the stroke of the electro-hydraulic push rod 11 is greater than the sum of the distances between the locking limit sensing part 7 and the locking limit proximity switch 6, the end faces of the upper and lower locking limit proximity switches 6 are 200 mm apart, the upper and lower locking limit sensing parts 7 are 75 mm apart, and the stroke of the electro-hydraulic push rod 11 is 135 mm. When the electro-hydraulic push rod 11 is pushed to the maximum amount, the upper spring 8 is compressed by 5 mm, and when the electro-hydraulic push rod retracts to the minimum value, the lower spring is compressed by 5 mm.

[0032] like Figure 2-Figure 3 As shown, further, the locking limit proximity switch 6 and the locking limit sensing part 7 receive signals in a surface-to-surface contact manner.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oxygen lance transverse vehicle locking device, comprising a switch frame, an electro-hydraulic push rod and a positioning plate, wherein the electro-hydraulic push rod fork head at the top of the electro-hydraulic push rod is inserted into the U-shaped groove of the positioning plate, characterized in that: The electro-hydraulic push rod is arranged on one side of the switch frame, and a pin is arranged on the electro-hydraulic push rod on one side of the switch frame, the pin is connected to the spring approach body, and round steel is vertically arranged on the upper and lower sides of the spring approach body, and a spring is coaxially arranged on the outer side of the round steel. The free ends of the springs on both sides are provided with coaxial locking limit sensing parts, and locking limit proximity switches are arranged on the switch frame at the corresponding positions of the coaxial axes of the locking limit sensing parts on the upper and lower sides; the oxygen gun transverse vehicle locking device also includes a travel limit proximity switch, and the travel limit proximity switches are horizontally symmetrically arranged on both sides of the switch frame.

2. The locking device for the oxygen lance transverse vehicle according to claim 1 is characterized in that: The positioning plate is located below the transverse track between the two wheels of the transverse vehicle. A long axis is arranged on the side plate surface of the U-shaped groove of the positioning plate away from the travel limit proximity switch. A travel limit sensing part is arranged at the end of the long axis. Brushes are arranged horizontally and side by side near the inner side of the travel limit proximity switch of the travel limit sensing part. The travel limit proximity switch and the travel limit sensing part coincide with the axis line of the positioning position of the transverse vehicle.

3. The locking device for the oxygen lance transverse vehicle according to claim 2 is characterized in that: The travel limit sensing part and the travel limit proximity switch are 4 to 6 mm apart from each other at the end faces of the transverse vehicle positioning position.

4. The locking device for the oxygen lance transverse vehicle according to claim 1, characterized in that: The locking limit proximity switch, the locking limit sensing part and the spring are coaxial axis structures, and the coaxial axis is parallel to the axis of the electro-hydraulic push rod.

5. The locking device for the oxygen lance transverse vehicle according to claim 1 is characterized in that: The stroke of the electro-hydraulic push rod is greater than the sum of the distances between the locking limit sensing portion and the locking limit proximity switch.

6. The locking device for the oxygen lance transverse vehicle according to claim 1, characterized in that: The locking limit proximity switch and the locking limit sensing part receive signals in a surface-to-surface contact manner.

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