CN115287393A

CN115287393A - Sublance rotary lifting device

Info

Publication number: CN115287393A
Application number: CN202210876954.3A
Authority: CN
Inventors: 姚娟; 宋晓燕
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-04
Anticipated expiration: 2042-07-25
Also published as: CN115287393B

Abstract

The invention relates to the technical field of converter steelmaking, in particular to a sublance rotary lifting device, which comprises a lance body, a lifting trolley and a lifting mechanism, wherein the lifting trolley is slidably arranged on the lifting mechanism, and is characterized in that: the lifting trolley comprises a trolley body, the trolley body is rotatably connected with the trolley body, the rotary driving device is installed on the trolley body, the trolley body is connected with the output end of the rotary driving device, and the trolley body is installed on the trolley body. Compared with the traditional sublance lifting and rotating device, the device only enables the sublance body to rotate around the upper and lower rotating fulcrums on the lifting trolley, and other parts are kept fixed, thus greatly simplifying the design of a rotating driving device and a lifting mechanism, having simple structure and high reliability, and being suitable for the newly added sublance device of a converter factory with large converter tonnage and large oxygen lance corridor size.

Description

Sublance rotary lifting device

Technical Field

The invention relates to the technical field of converter steelmaking, in particular to a rotary lifting device for a sublance.

Background

The converter sublance system is key equipment for automatic steelmaking of a converter, has the functions of measuring temperature, sampling, determining oxygen, determining carbon, determining liquid level height and the like, and is important detection equipment and a process control tool which are indispensable in a modern converter workshop. Most of the existing converter sublance devices adopt rotary sublance devices, the sublance is in a plane with a machine position and a measuring position, and the rotary mode is also various and has hydraulic, electric and the like. The rotary parts of the existing rotary sublance devices are different, a lifting track rotates together with a rotary platform, and only the lifting track rotates (as disclosed in the patent of CN 108639994A), but the rotary parts of the two modes are very large, the rotary driving device and the lifting mechanism are designed to be relatively complex, the cost is relatively high, and when a converter plant with large converter tonnage and large oxygen lance corridor size needs to be additionally provided with a sublance device, the newly provided sublance device is difficult to realize on the rotary sublance devices of the two modes.

Disclosure of Invention

The invention aims to provide a sublance rotary lifting device, which only enables a sublance body to rotate around an upper rotating fulcrum and a lower rotating fulcrum on a lifting trolley, keeps other parts fixed, greatly simplifies the design of a rotary driving device and a lifting mechanism, has simple structure and high reliability, and is suitable for a newly added sublance device of a converter plant with large converter tonnage and larger oxygen lance corridor size.

In order to achieve the purpose, the technical scheme of the invention is that the sublance rotary lifting device comprises a gun body, a lifting trolley and a lifting mechanism, wherein the lifting trolley is slidably mounted on the lifting mechanism, the sublance rotary lifting device also comprises a gun body rotating frame and a rotary driving device, the lifting trolley comprises a vehicle body, the gun body rotating frame is rotatably connected with the vehicle body, the rotary driving device is mounted on the vehicle body, the gun body rotating frame is connected with the output end of the rotary driving device, and the gun body is mounted on the gun body rotating frame.

As one embodiment, the vehicle body is provided with an upper rotating fulcrum and a lower rotating fulcrum, the upper rotating fulcrum is rotatably provided with a first main shaft, and the lower rotating fulcrum is rotatably provided with a second main shaft; the gun body rotating frame is provided with an upper rotating arm and a lower rotating arm, one end of the upper rotating arm is sleeved on the first main shaft and connected through a connecting key, and one end of the lower rotating arm is sleeved on the second main shaft and connected through a connecting key.

As one embodiment, the upper rotating fulcrum comprises an upper bearing seat, an upper self-aligning roller bearing and a thrust self-aligning roller bearing, the upper bearing seat is fixed on the vehicle body, the upper self-aligning roller bearing and the thrust self-aligning roller bearing are both installed in the upper bearing seat, and one end of the first main shaft is installed in the upper self-aligning roller bearing and the thrust self-aligning roller.

As one embodiment, the lower rotation pivot includes a lower bearing seat and a lower aligning roller bearing, the lower bearing seat is fixed on the vehicle body, the lower aligning roller bearing is installed in the lower bearing seat, and one end of the second spindle is rotatably installed in the lower aligning roller bearing.

As one embodiment, the lifting mechanism includes a lifting frame, a lifting rail disposed on the lifting frame, and a lifting driving device for driving the vehicle body to move up and down along the lifting rail.

As one embodiment, an anti-tipping wheel set is mounted on the vehicle body, and the anti-tipping wheel set is mounted on the lifting track in a wheel-rail-embracing manner.

As one embodiment, the lifting rails are disposed on both sides of the lifting frame, and four sets of anti-tipping wheel sets are symmetrically disposed on the lifting rails on both sides.

In one embodiment, the anti-tip wheel set comprises a horizontal wheel, a front wheel and a rear wheel; the lifting track is provided with three lifting track surfaces, namely a front track surface, a rear track surface and a side track surface, and the front wheel, the horizontal wheel and the rear wheel are respectively and slidably mounted on the front track surface, the side track surface and the rear track surface.

As one embodiment, the lifting mechanism further comprises a pulley block and a steel wire rope, the pulley block is arranged at the top of the lifting frame, one end of the steel wire rope is connected with the lifting trolley, and the other end of the steel wire rope is wound around the pulley block and is connected with the lifting driving device.

As one of the implementation modes, one side of the pulley block is provided with an overhauling platform, the overhauling platform is arranged on a platform in a high-rise frame of the converter, and the platform is also provided with a discharging trolley and the lifting driving device.

Compared with the prior art, the invention has the following beneficial effects:

(1) Compared with the traditional sublance lifting and rotating device, the device only enables the sublance body to rotate around the upper and lower rotating fulcrums on the lifting trolley, and other parts are kept fixed, thus greatly simplifying the design of a rotating driving device and a lifting mechanism, having simple structure and high reliability, and being suitable for the newly added sublance device of a converter plant with large converter tonnage and large oxygen lance corridor size;

(2) Compared with the traditional sublance rotary lifting device, the constraint relation between the lifting trolley and the lifting track adopts a wheel-rail-embracing structural form, so that the problem that the lifting trolley is easy to tip over due to the fact that a gun body is rotated on the lifting trolley to cause large eccentric load can be solved well, and the normal operation of the lifting trolley is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of a rotary sublance lifting apparatus provided in accordance with an embodiment of the present invention;

FIG. 2 is a longitudinal sectional view of a rotary sub-lance lifting device provided in an embodiment of the present invention;

FIG. 3 is a top view of a rotary lift device for a sublance as provided by an embodiment of the present invention;

FIG. 4 isbase:Sub>A sectional view A-A of FIG. 2;

FIG. 5 is a front view of the lifting cart according to the embodiment of the present invention

FIG. 6 is a sectional view taken along line B-B of FIG. 5

FIG. 7 is a schematic structural view of a conventional "rail-wheel-embracing" type lifting trolley;

in the figure: 1. a gun body; 2. a gun body rotating frame; 3. a rotation driving device; 31. rotating arm is rotated upwards; 32. a lower rotating arm; 4. lifting the trolley; 41. a vehicle body; 42. an anti-rollover wheel set; 421. a horizontal wheel; 422. a front wheel; 423. a rear wheel; 43. an upper rotating fulcrum; 431. an upper bearing seat; 432. an upper self-aligning roller bearing; 433. a thrust self-aligning roller bearing; 434. a lock nut; 435. an upper end cover; 44. a lower rotation fulcrum; 441. a lower bearing seat; 442. a lower self-aligning roller bearing; 443. a lower end cover; 444. a seal ring; 45. a gun body pipe; 5. a lifting mechanism; 51. a lifting frame; 52. a lifting track; 53. a lift drive; 54. a pulley block; 55. a connecting member; 6. overhauling the platform; 7. a first main shaft; 8. a second main shaft; 9. a connecting key.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 6, the present embodiment provides a sublance rotary lifting device, which includes a gun body 1, a lifting trolley 4, a lifting mechanism 5, and a gun body rotating frame 2 and a rotary driving device 3, where the lifting trolley 4 is slidably mounted on the lifting mechanism 5, the lifting trolley 4 includes a gun body 41, the gun body rotating frame 2 is rotatably connected to the gun body 41, the rotary driving device 3 is mounted on the gun body 41, the gun body rotating frame 2 is connected to an output end of the rotary driving device 3, and the gun body 1 is mounted on the gun body rotating frame 2. The embodiment will be used for installing the rifle body swivel mount 2 of the rifle body 1 and be used for driving the rifle body swivel mount 2 and all set up on the automobile body 41 of lift dolly 4 measuring the position and connecting the rotary driving device 3 of the conversion between the position, and when the sublance rifle body 1 rotated around lift dolly 1, lift dolly 4 and elevating system 5 kept motionless, has simplified the design of rotary driving device 3 and elevating system 5 greatly, and simple structure and reliability are high.

In this embodiment, the vehicle body 41 is provided with an upper rotation fulcrum 43 and a lower rotation fulcrum 44, a first spindle 7 is rotatably mounted in the upper rotation fulcrum 43, and a second spindle 8 is rotatably mounted in the lower rotation fulcrum 44; an upper rotating arm 31 and a lower rotating arm 32 are arranged on the gun body rotating frame 2, one end of the upper rotating arm 31 is sleeved on the first main shaft 7 and connected through a connecting key 9, and one end of the lower rotating arm 32 is sleeved on the second main shaft 8 and connected through the connecting key 9. The upper rotation pivot 43 and the lower rotation pivot 44 on the vehicle body 41 are concentrically arranged up and down, the upper rotation arm 31 and the lower rotation arm 32 on the gun body rotating frame 2 are both provided with rotation mounting holes, and the two rotation mounting holes are concentrically arranged and are adapted to the upper rotation pivot 43 and the lower rotation pivot 44 on the vehicle body 41. The rotary driving device 3 can adopt a rotary driving motor, an output shaft of the rotary driving motor is connected with the first main shaft 7, and the first main shaft 7 is driven to rotate through the rotation of the rotary driving motor, so that the gun body rotating frame 2 connected with the first main shaft 7 in key mode and the gun body 1 are driven to rotate.

Specifically, the upper rotating fulcrum 43 includes an upper bearing seat 431, an upper self-aligning roller bearing 432 and a self-aligning roller thrust bearing 433, the upper bearing seat 431 is fixed on the vehicle body 41, the upper self-aligning roller bearing 432 and the self-aligning roller thrust bearing 433 are both installed in the upper bearing seat 431, and one end of the first main shaft 7 is installed in the upper self-aligning roller bearing 432 and the self-aligning roller thrust bearing. The upper self-aligning roller bearing 432 and the thrust self-aligning roller bearing 433 are mounted in an upper bearing seat 431 and lock an inner ring through a locking nut 434, an upper end cover 435 is mounted at the end of the upper bearing seat 431, one end of the main shaft I7 penetrates through the upper end cover 435 and is fixedly connected with the inner rings of the upper self-aligning roller bearing 432 and the thrust self-aligning roller bearing 433 in sequence, and the other end penetrates through a rotary mounting hole in the upper rotating arm 31 and is connected with the upper rotating arm 31 in a key mode.

Specifically, the lower rotation fulcrum 44 includes a lower bearing seat 441 and a lower aligning roller bearing 442, the lower bearing seat 441 is fixed on the vehicle body 41, the lower aligning roller bearing 442 is installed in the lower bearing seat 441, and one end of the second spindle 8 is rotatably installed in the lower aligning roller bearing 442. A lower end cover 443 is mounted at the end of the lower bearing seat 441, and the lower end cover 443 and the second main shaft 8 are sealed by a sealing ring 444; one end of the main shaft II 8 is fixedly connected with the inner ring of the lower centering roller bearing 442, and the other end of the main shaft II penetrates through the rotary mounting hole in the lower rotating arm 32 and is in key connection with the lower rotating arm 32.

In this embodiment, the lifting mechanism 5 includes a lifting frame 51, a lifting rail 52 disposed on the lifting frame 51, and a lifting driving device 53 for driving the vehicle body 41 to move up and down along the lifting rail 52. The lifting frame 51 is based on large H-shaped steel and is fixed in an oxygen lance passageway of a converter high-rise frame through a side connecting piece 55. Optimally, the anti-tipping wheel group 42 is installed on the vehicle body 41, and the anti-tipping wheel group 42 is installed on the lifting track 52 in a wheel-rail-embracing manner. Preferably, the lifting rails 52 are disposed on both sides of the lifting frame 51, four sets of anti-tipping wheel sets 42 are symmetrically mounted on the lifting rails 52 on both sides, that is, two sets of anti-tipping wheel sets 42 are mounted on each lifting rail 52 in a wheel-rail-embracing structural manner, and the anti-tipping wheel sets 42 on the lifting rails 52 on both sides are symmetrically arranged.

Since the gun body 1 rotates on the lifting trolley 4 in this embodiment, the eccentric load caused by the gun body 1 and the lifting trolley 4 is larger than that of a common lifting trolley, and the lifting trolley 4 is prone to tipping due to the adoption of the structural form of "rail-to-rail", so that the constraint relationship between the lifting trolley 4 and the lifting track 52 in this embodiment adopts the structural form of "rail-to-rail". Specifically, the anti-tipping wheel group 42 includes a horizontal wheel 421, a front wheel 422 and a rear wheel 423, the horizontal wheel 421 is located between the front wheel 422 and the rear wheel 423; the lifting track 52 is provided with three lifting track surfaces which are respectively a front track surface, a rear track surface and a side track surface, the front wheels 422, the horizontal wheels 421 and the rear wheels 423 are respectively and slidably mounted on the front track surface, the side track surface and the rear track surface, and the three wheels of the anti-tipping wheel group 42 are mounted on the lifting track 52 in a wheel-rail-embracing structural mode, so that the problem that the lifting trolley 4 is prone to tipping due to large tipping moment can be well solved, and the normal operation of the lifting trolley is ensured.

The lifting mechanism 5 further comprises a pulley block 54 and a steel wire rope, wherein the pulley block 54 is arranged at the top of the lifting frame 51, one end of the steel wire rope is connected with the lifting trolley 4, and the other end of the steel wire rope is wound around the pulley block 54 and is connected with the lifting driving device 53. The lifting driving device 53 can adopt a variable frequency motor with an encoder, the variable frequency motor is connected with the winding drum through a speed reducer, one end of a steel wire rope is wound on the winding drum, the other end of the steel wire rope is connected with the vehicle body 41 of the lifting trolley 4, and the winding drum is driven to rotate through the variable frequency motor, so that the lifting trolley 4 and the gun body 1 are driven to move up and down.

Furthermore, one side of the pulley block 54 is provided with an overhaul platform 6, the overhaul platform 6 is arranged on a platform in a high-rise frame of the converter, and the platform is also provided with a discharge trolley and the lifting driving device 53. The maintenance platform 6 is used for maintaining the pulley block 54, and both the maintenance platform 6 and the lifting driving device 53 can be arranged at a proper position of the platform where the discharging trolley in the high-rise frame of the converter is positioned.

In this embodiment, the body 41 is further provided with a gun body pipe 45, and the gun body pipe 45 is connected to the gun body 1. When the auxiliary lance device needs to be added, the lance body pipe 45 can be additionally arranged on the lance body 41 and the lance body 1 can be additionally arranged on the lance body rotating frame 2, so that the auxiliary lance device is particularly suitable for the situation that the auxiliary lance device needs to be added in the later period of a converter plant with large converter tonnage and large oxygen lance corridor size.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a sublance rotary lifting device, includes the rifle body, lift dolly and elevating system, lift dolly slidable mounting in elevating system is last, its characterized in that: the lifting trolley comprises a trolley body, the trolley body is rotatably connected with the trolley body, the rotary driving device is installed on the trolley body, the trolley body is connected with the output end of the rotary driving device, and the trolley body is installed on the trolley body.

2. A rotary sublance lifting apparatus as recited in claim 1, further comprising: an upper rotating fulcrum and a lower rotating fulcrum are arranged on the vehicle body, a first main shaft is rotatably mounted in the upper rotating fulcrum, and a second main shaft is rotatably mounted in the lower rotating fulcrum; the gun body rotating frame is provided with an upper rotating arm and a lower rotating arm, one end of the upper rotating arm is sleeved on the first main shaft and connected through a connecting key, and one end of the lower rotating arm is sleeved on the second main shaft and connected through a connecting key.

3. A sublance rotary elevation device as claimed in claim 2, wherein: the upper rotating fulcrum comprises an upper bearing seat, an upper aligning roller bearing and a thrust aligning roller bearing, the upper bearing seat is fixed on the vehicle body, the upper aligning roller bearing and the thrust aligning roller bearing are both installed in the upper bearing seat, and one end of the first main shaft is installed in the upper aligning roller bearing and the thrust aligning roller.

4. A sublance rotary elevation device as claimed in claim 2, wherein: the lower rotating fulcrum comprises a lower bearing seat and a lower aligning roller bearing, the lower bearing seat is fixed on the vehicle body, the lower aligning roller bearing is installed in the lower bearing seat, and one end of the second main shaft is rotatably installed in the lower aligning roller bearing.

5. A sublance rotary elevation device as claimed in claim 1, further comprising: the lifting mechanism comprises a lifting frame, a lifting track arranged on the lifting frame and a lifting driving device used for driving the vehicle body to move up and down along the lifting track.

6. A sublance rotary elevation device according to claim 5 further comprising: the anti-overturning trolley is characterized in that an anti-overturning wheel set is mounted on the trolley body in a wheel-rail-embracing mode.

7. A rotary sublance lifting apparatus as recited in claim 6, further comprising: the lifting tracks are arranged on two sides of the lifting frame, and four anti-tipping wheel sets are symmetrically arranged on the lifting tracks on two sides in pairs.

8. A sublance rotary elevation device according to claim 7 further comprising: the anti-tipping wheel group comprises a horizontal wheel, a front wheel and a rear wheel; the lifting track is provided with three lifting track surfaces, namely a front track surface, a rear track surface and a side track surface, and the front wheel, the horizontal wheel and the rear wheel are respectively and slidably mounted on the front track surface, the side track surface and the rear track surface.

9. A sublance rotary elevation device according to claim 5 further comprising: the lifting mechanism further comprises a pulley block and a steel wire rope, the pulley block is arranged at the top of the lifting frame, one end of the steel wire rope is connected with the lifting trolley, and the other end of the steel wire rope is wound through the pulley block and connected with the lifting driving device.

10. A sublance rotary elevation device according to claim 9 further comprising: and an overhauling platform is arranged on one side of the pulley block, the overhauling platform is arranged on a platform in the high-rise frame of the converter, and a discharging trolley and a lifting driving device are also arranged on the platform.