CN218690861U

CN218690861U - But quick replacement leading wheel's elevating trolley for desulphurization unit

Info

Publication number: CN218690861U
Application number: CN202222970314.7U
Authority: CN
Inventors: 曹树森; 刘应东; 彭宏亮; 鲁海瑞
Original assignee: Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Current assignee: Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-24
Anticipated expiration: 2032-11-08

Abstract

The utility model relates to a lifting trolley for a desulphurization device with a guide wheel capable of being replaced quickly, which comprises a frame, an adjusting screw, a disc spring, a concentric guide wheel mechanism and an eccentric guide wheel mechanism; the chain transmission mechanisms are correspondingly arranged in the middle parts of the left end and the right end of the upper side and the lower side of the frame respectively through adjusting screws; the disc springs are respectively vertically arranged on the inner sides of the chain transmission mechanisms; the inner end of the disc spring is provided with a disc spring adjusting nut; a pair of eccentric guide wheel mechanisms are symmetrically arranged on the left side and the right side of the upper part and the lower part of the vertical center line of the front end surface of the frame respectively; two pairs of eccentric guide wheel mechanisms at the upper part and the lower part of the front end surface of the frame are symmetrical; a group of eccentric guide wheel mechanisms and concentric guide wheel mechanisms are symmetrically arranged on the front side and the rear side of the upper end part and the lower end part of the left end surface and the right end surface of the frame respectively; and the eccentric guide wheel mechanisms and the concentric guide wheel mechanisms on the left end surface and the right end surface of the frame are symmetrical with each other. The utility model discloses can effectively reduce the intensity of changing the leading wheel, improve the change time of leading wheel simultaneously by a wide margin to improve production efficiency.

Description

But quick replacement leading wheel's elevating trolley for desulphurization unit

Technical Field

The utility model relates to a steelmaking desulfurization technical field especially relates to a but lift dolly for desulphurization unit of quick replacement leading wheel.

Background

The steel-making desulfurization reaction is a physical and chemical reaction for removing harmful impurity sulfur in the steel-making and molten steel external refining process.

The blowing method is a main method for desulfurizing molten iron, wherein inert gas mixed with a desulfurizing agent is fed into the deep part of the molten iron through a spray gun, and the molten iron and the desulfurizing agent are stirred to be fully mixed for desulfurization. In the blowing desulfurization process, when the hot metal bottle is transported, the spray gun needs to be lifted to a certain height, and during blowing, the spray gun needs to be conveyed with the desulfurizer and also needs to be lowered to a proper position. The actions are realized by driving a lifting trolley which moves along the guide rail upright post by a lifting device. The spray gun is arranged on the lifting trolley, so that the spray gun and the lifting trolley synchronously ascend and descend. In order to limit the horizontal displacement of the lifting trolley relative to the guide upright post, the lifting trolley can only be lifted or lowered along the guide rail, and 12 guide wheel mechanisms are arranged on the lifting trolley.

However, the guide wheel structure adopted by the existing lifting trolley can not realize on-line replacement, and when the guide wheel is replaced at every time, the lifting trolley can be replaced only by detaching the lifting trolley from the upper end of the lifting and transverse moving equipment for continuously desulfurizing and blowing the desulfurizer along the guide rail to the platform after the chain wheel group at the upper end of the guide rail and the chain in the lifting device are detached. The replacing time of each time probably needs one working day, and the guide wheel is a loss part and is easy to damage, so the replacing frequency of the guide wheel every year is high, and the guide wheel needs to occupy the crane, thereby delaying the smooth operation of the whole steelmaking process. And the existing operating mode for replacing the guide wheel mechanism is complicated, difficult, dangerous and complex, and the cost for maintaining and replacing the guide wheel is high, so that the problem is solved by researching and developing a lifting trolley which is convenient to maintain and replace and runs efficiently.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a lifting trolley for a desulfurization device with a guide wheel capable of being replaced quickly, which can ensure smooth proceeding of the steel-making process.

The utility model adopts the technical scheme as follows:

the utility model provides a lifting trolley for a desulphurization device capable of rapidly replacing guide wheels, which comprises a frame, an adjusting screw, a disc spring adjusting nut, a concentric guide wheel mechanism and an eccentric guide wheel mechanism; a pair of eccentric guide wheel mechanisms is symmetrically arranged on the left side and the right side of the upper part of the vertical center line of the front end surface of the frame; a pair of eccentric guide wheel mechanisms is symmetrically arranged on the left side and the right side of the lower part of the central line of the front end surface of the frame; two pairs of eccentric guide wheel mechanisms at the upper part and the lower part of the front end surface of the frame are symmetrical; the front side and the rear side of the upper end part and the lower end part of the left end surface of the frame are symmetrically provided with an eccentric guide wheel mechanism and a concentric guide wheel mechanism; the front side and the rear side of the upper end part and the lower end part of the right end surface of the frame are symmetrically provided with an eccentric guide wheel mechanism and a concentric guide wheel mechanism; the eccentric guide wheel mechanisms and the concentric guide wheel mechanisms on the left end surface and the right end surface of the frame are symmetrical; the upper end and the lower end of the frame are respectively provided with a bearing lug plate in bilateral symmetry, and a longitudinal guide hole is formed in the middle of the bearing lug plate; one end of the adjusting screw rod is hinged with the existing chain transmission mechanism through a pin shaft, the other end of the adjusting screw rod penetrates through the longitudinal guide hole of the bearing lug plate and then is sequentially sleeved with the disc spring and the disc spring adjusting nut, and the adjusting nut is screwed and fixed after the buffering stroke is set.

Furthermore, the eccentric guide wheel mechanism comprises an eccentric wheel positioning flange, an eccentric shaft, a guide wheel, a key, a locknut and a fixing bolt; the eccentric shaft is vertically arranged with the end surface of the frame, and the rear end of the eccentric shaft passes through the rear side mounting hole and is in micro interference connection with the rear side mounting hole; the guide wheel is arranged in the rear side area of the eccentric shaft; the front side of the eccentric shaft is connected with the front side mounting hole through an eccentric wheel positioning flange; the eccentric wheel positioning flange is connected with the frame through a fixing bolt; the locknut is arranged at the front end of the eccentric shaft.

Furthermore, a positioning key is arranged at the shaft diameter position where the eccentric shaft is matched with the eccentric wheel positioning flange, and the eccentric shaft and the eccentric wheel positioning flange are connected through the positioning key and the eccentric wheel positioning flange, so that the circumferential positioning of the eccentric shaft and the eccentric wheel positioning flange is ensured.

Furthermore, the concentric guide wheel mechanism comprises a concentric wheel positioning flange, a guide wheel, a concentric shaft, a locknut and a fixing bolt; the concentric shaft is vertically arranged with the left and right end surfaces of the frame, and the rear end of the concentric shaft passes through the rear side mounting hole and is in micro interference connection with the rear side mounting hole; the guide wheel is arranged in the rear side area of the concentric shaft; the front side of the concentric shaft is connected with the front side mounting hole through a concentric wheel positioning flange; the concentric wheel positioning flange is connected with the frame through a fixing bolt; the locknut is arranged at the front end of the through mandrel.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses the lift dolly can realize changing the leading wheel on line, need not to hang lift dolly and frame guide rail from when changing the leading wheel, has simplified the mode of changing the leading wheel, has practiced thrift the time of changing the leading wheel, and the time of changing the leading wheel is reduced to within two hours by a working day.

2. The utility model discloses the lift dolly has not only realized changing the leading wheel on line, and simple structure, easy to maintain and dismouting, and the mode of changing the leading wheel is simple high-efficient, and the cost of maintenance and change leading wheel is very low.

Drawings

FIG. 1 is a schematic view of the installation position of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 4 is a schematic side view of the present invention;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

fig. 6 is a schematic structural view of the frame of the present invention.

Wherein, the reference numbers: 1-a vehicle frame; 2-a chain transmission mechanism; 3-adjusting the screw rod; 4-disc spring; 5-a concentric guide wheel mechanism; 51-concentric wheel alignment flange; 52-concentric axis; 6-eccentric guide wheel mechanism; 61-eccentric wheel positioning flange; 62-an eccentric shaft; 63-a positioning key; 7-disc spring adjusting nut; 8-a guide wheel; 9-locknut; 10-fixing the bolt; 11-a frame rail; 12-sprocket set mounting base; 13-top sprocket set; 14-a rotary drive motor; 15-rotating the drive bearing support; 16-a rotary drive shaft; 17-rotating the spray gun; 18-load bearing ear panels.

Detailed Description

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

It should be noted that in the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, and does not mean that the device or the element must have a specific orientation, be constructed in a specific orientation, and be operated.

Referring to the attached fig. 1-5, a specific structure of an embodiment of the lifting cart for a desulfurization device capable of rapidly replacing the guide wheels is shown. The lifting trolley comprises a frame 1, an adjusting screw rod 3, a disc spring 4, a concentric guide wheel mechanism 5, an eccentric guide wheel mechanism 6 and a disc spring adjusting nut 7; the left side and the right side of the upper part of the frame 1 are symmetrically provided with bearing lug plates 18, the left side and the right side of the lower part of the frame 1 are also symmetrically provided with the bearing lug plates 18, and the middle position of each bearing lug plate 18 is provided with a longitudinal guide hole 19; one end of the adjusting screw rod 3 is hinged with the existing chain transmission mechanism 2 through a pin shaft, the other end of the adjusting screw rod penetrates through a longitudinal guide hole of the bearing lug plate 19 and then is sequentially sleeved with the disc spring 4 and the disc spring adjusting nut 7, and the disc spring adjusting nut 7 is screwed and fixed after the buffering stroke is set. Four groups of prior chain transmission mechanisms 2 are respectively and correspondingly arranged in the middle parts of the left and right ends of the upper and lower sides of the frame 1 through adjusting screws 3; a pair of eccentric guide wheel mechanisms 6 are symmetrically arranged on the left side and the right side of the upper part of the vertical center line of the front end surface of the frame 1; the left side and the right side of the lower part of the central line of the front end surface of the frame 1 are also symmetrically provided with a pair of eccentric guide wheel mechanisms 6; the pair of eccentric guide wheel mechanisms 6 at the upper part of the front end surface of the frame 1 and the pair of eccentric guide wheel mechanisms 6 at the lower part are symmetrical; the front side and the rear side of the upper end part of the left end surface of the frame 1 are respectively and symmetrically provided with an eccentric guide wheel mechanism 6 and a concentric guide wheel mechanism 5; the front side and the rear side of the lower end part of the left end surface of the frame 1 are symmetrically provided with an eccentric guide wheel mechanism 6 and a concentric guide wheel mechanism 5; the front side and the rear side of the upper end part of the right end face of the frame 1 are symmetrically provided with an eccentric guide wheel mechanism 6 and a concentric guide wheel mechanism 5; the front side and the rear side of the lower end part of the right end face of the frame 1 are symmetrically provided with an eccentric guide wheel mechanism 6 and a concentric guide wheel mechanism 5; the eccentric guide wheel mechanism 6 and the concentric guide wheel mechanism 5 on the left end surface of the frame 1 are mutually symmetrical with the eccentric guide wheel mechanism 6 and the concentric guide wheel mechanism 5 on the right end surface; namely, the utility model discloses lift dolly's main view visual angle is along the equal symmetrical structure of horizontal central plane and vertical central plane.

As shown in fig. 3, the eccentric guide wheel mechanism 6 comprises an eccentric wheel positioning flange 61, an eccentric shaft 62, a guide wheel 8, a positioning key 64, a locknut 9 and a fixing bolt 10; the left side and the right side of the upper part and the lower part of the central line of the front end surface of the frame 1 and the corresponding positions of the upper end and the lower end of the left end surface and the right end surface of the frame 1 are respectively provided with a front mounting hole and a rear mounting hole; the eccentric shaft 62 is vertically arranged with the corresponding end surface of the frame, and the rear end of the eccentric shaft 62 is in micro interference connection with the rear side mounting hole; the guide wheel 8 is coaxially arranged at the rear side area of the eccentric shaft 62; the front side of the eccentric shaft 62 is connected with a front side mounting hole through a coaxial eccentric wheel positioning flange 61; the eccentric wheel positioning flange 61 corresponds to the guide wheel 8 in position; two sides of the eccentric wheel positioning flange 61 are connected with the frame 1 through fixing bolts 10; the locknut 9 is connected to the front end of the eccentric shaft 62 and corresponds to the outer end face of the eccentric wheel positioning flange 61. In this embodiment, the positioning key 64 is installed at the axial diameter position where the eccentric shaft 62 is matched with the eccentric wheel positioning flange 61, and the eccentric shaft 62 is connected with the eccentric wheel positioning flange 61 through the positioning key 64, so that the circumferential positioning of the eccentric shaft 62 and the eccentric wheel positioning flange 61 is ensured, and further the eccentric size of the guide wheel 8 can be adjusted by adjusting the circumferential swing angle of the eccentric wheel positioning flange 61, so that the guide wheel 8 is attached to the guide rail, and the stable guiding is realized.

As shown in fig. 5, the concentric guide wheel mechanism 5 comprises a concentric wheel positioning flange 51, a concentric shaft 52, a guide wheel 8, a locknut 9 and a fixing bolt 10; the corresponding positions of the upper end and the lower end of the left end surface and the right end surface of the frame 1 are respectively provided with a front mounting hole and a rear mounting hole, the concentric shaft 52 is vertically mounted on the end surfaces of the left end surface and the right end surface of the frame 1, and the rear end of the concentric shaft 52 is in micro-interference connection with the rear mounting holes; the guide wheel 8 is coaxially arranged at the rear side area of the concentric shaft 52; the front side of the concentric shaft 52 is connected with a front side mounting hole through a concentric wheel positioning flange 51, and the concentric wheel positioning flange 51 corresponds to the guide wheel 8; the concentric wheel positioning flange 51 is connected with the frame through a fixing bolt 10; the locknut 9 is connected to the front end of the through-spindle 52 and corresponds to the outer end face of the concentric wheel positioning flange 51.

During first installation, the lifting trolley frame 1 is connected with the existing frame guide rail 11 in a vertical sliding mode through the concentric guide wheel mechanism 5 and the eccentric guide wheel mechanism 6 respectively, the lifting trolley frame is placed on a debugging and disassembling station, the chain wheel set installation base 12 and the top chain wheel set 13 on the upper portion of the frame guide rail 11 are installed in sequence, then the existing chain transmission mechanism 2, the adjusting screw rod 3, the disc spring 4 and the disc spring adjusting nut 7 are installed on the frame 1 after being connected in sequence, and then the lifting trolley is adjusted to the working position. After assembling the concentric guide wheel mechanism 5 and the eccentric guide wheel mechanism 6 at each position, firstly inserting the concentric guide wheel mechanism 5 into the corresponding mounting hole on the trolley frame 1 in sequence, screwing the fixing bolt 10, adjusting the lifting trolley, and tightly pressing the guide wheel 8 on the corresponding guide rail; then the eccentric guide wheel mechanism 6 is installed, after the eccentric guide wheel mechanism 6 is inserted into the corresponding installation hole on the trolley frame 1 in sequence, the eccentric shaft 62 of the eccentric guide wheel mechanism 6 is adjusted to enable the guide wheel 8 to be attached to the corresponding guide rail, the fixing bolt 10 of the eccentric guide wheel mechanism 6 is screwed in sequence, and the installation of the guide wheel mechanism of the lifting trolley is completed. The chain transmission mechanism 2 is connected with a top chain wheel set 13 and is used for driving a chain wheel to rotate so as to control the lifting trolley to slide up and down along the rack guide rail 11; the back of the lifting trolley frame 1 is provided with a mounting hole for the rotary driving bearing support 15, the rotary driving bearing support 15 is fixedly arranged at the back of the frame 1 through the thread pretightening force, so that the rotary driving bearing support 15 follows the lifting trolley, and the rotary spray gun 17 is driven to move up and down. The rack guide rail 11, the chain wheel set mounting base 12, the top chain wheel set 13, the rotary driving motor 14, the rotary driving bearing support 15, the rotary driving shaft 16 and the rotary spray gun 17 are all existing parts.

When the lifting trolley works for a period of time and the guide wheel 8 is damaged and needs to be replaced, firstly stopping the lifting trolley to a replacement maintenance position, only detaching the fixing bolt 10 on the concentric guide wheel mechanism 5 or the eccentric guide wheel mechanism 6 which needs to be replaced, pulling the concentric guide wheel mechanism 5 or the eccentric guide wheel mechanism 6 out of the frame of the lifting trolley, then unscrewing the locknut 9, sequentially detaching the positioning flange of the guide wheel 8 and the damaged guide wheel 8, then installing a new guide wheel 8 on the concentric shaft 52 or the eccentric shaft 62, sleeving the new guide wheel 8 on the concentric wheel positioning flange 51 or the eccentric wheel positioning flange 61, screwing the locknut 9, then inserting the new guide wheel 8 into the mounting hole of the lifting trolley again, and if the concentric guide wheel mechanism 5 is used, directly installing the fixing bolt 10 and then screwing; in the case of the eccentric guide wheel mechanism, the eccentric shaft 62 is adjusted to make the guide wheel 8 closely contact with the guide rail, and then the fixing bolt 10 is installed and then tightened. The utility model discloses it is very convenient to change the dismantlement, need not dismantle chain wheel group installation base 12 and top chain wheel group 13 on frame guide rail upper portion, also need not to use the overhead traveling crane, changes convenient and fast.

The present invention is not exhaustive and is well known.

The above-mentioned embodiments are merely described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a but quick replacement leading wheel's elevating trolley for desulphurization unit which characterized in that: comprises a frame, an adjusting screw, a disc spring adjusting nut, a concentric guide wheel mechanism and an eccentric guide wheel mechanism; a pair of eccentric guide wheel mechanisms is symmetrically arranged on the left side and the right side of the upper part of the vertical center line of the front end surface of the frame; a pair of eccentric guide wheel mechanisms is symmetrically arranged on the left side and the right side of the lower part of the central line of the front end surface of the frame; two pairs of eccentric guide wheel mechanisms at the upper and lower parts of the front end surface of the frame are mutually symmetrical; the front side and the rear side of the upper end part and the lower end part of the left end surface of the frame are symmetrically provided with an eccentric guide wheel mechanism and a concentric guide wheel mechanism; the front side and the rear side of the upper end part and the lower end part of the right end surface of the frame are symmetrically provided with an eccentric guide wheel mechanism and a concentric guide wheel mechanism; the eccentric guide wheel mechanisms and the concentric guide wheel mechanisms on the left end surface and the right end surface of the frame are symmetrical to each other; the upper end and the lower end of the frame are respectively provided with a bearing lug plate in bilateral symmetry, and a longitudinal guide hole is formed in the middle of the bearing lug plate; one end of the adjusting screw rod is hinged with the existing chain transmission mechanism through a pin shaft, the other end of the adjusting screw rod penetrates through the longitudinal guide hole of the bearing lug plate and then is sequentially sleeved with the disc spring and the disc spring adjusting nut, and the adjusting nut is screwed and fixed after the buffering stroke is set.

2. The lifting trolley for the desulfurization device with the guide wheels capable of being replaced rapidly as claimed in claim 1, wherein: the eccentric guide wheel mechanism comprises an eccentric wheel positioning flange, an eccentric shaft, a guide wheel, a key, a locknut and a fixing bolt; the eccentric shaft is vertically arranged with the end surface of the frame, and the rear end of the eccentric shaft passes through the rear side mounting hole and is in micro interference connection with the rear side mounting hole; the guide wheel is arranged in the rear side area of the eccentric shaft; the front side of the eccentric shaft is connected with the front side mounting hole through an eccentric wheel positioning flange; the eccentric wheel positioning flange is connected with the frame through a fixing bolt; the locknut is arranged at the front end of the eccentric shaft.

3. The lifting trolley for the desulfurization device with the guide wheels capable of being replaced rapidly as claimed in claim 2, wherein: and a positioning key is arranged at the shaft diameter position where the eccentric shaft is matched with the eccentric wheel positioning flange, and is connected with the eccentric wheel positioning flange through the positioning key, so that the circumferential positioning of the eccentric shaft and the eccentric wheel positioning flange is ensured.

4. The lifting trolley for the desulfurization device with the guide wheels capable of being replaced rapidly as claimed in claim 1, wherein: the concentric guide wheel mechanism comprises a concentric wheel positioning flange, a guide wheel, a concentric shaft, a locknut and a fixing bolt; the concentric shaft is vertically arranged with the left and right end surfaces of the frame, and the rear end of the concentric shaft passes through the rear side mounting hole and is in micro interference connection with the rear side mounting hole; the guide wheel is arranged in the rear side area of the concentric shaft; the front side of the concentric shaft is connected with the front side mounting hole through a concentric wheel positioning flange; the concentric wheel positioning flange is connected with the frame through a fixing bolt; the locknut is arranged at the front end of the through mandrel.