CN218109340U - Molten iron carrying and weighing mechanism - Google Patents

Abstract

The utility model relates to a molten iron technical field that weighs, in particular to molten iron transport weighing machine constructs, set up the transport mechanism on balance body top including frame, balance body and symmetry, transport mechanism includes first raceway, second raceway, drive module, first raceway and second raceway are respectively through the drive module drive, the both sides of balance body bottom are provided with first weighing sensor group and second weighing sensor group respectively, first weighing sensor group is including being located first weighing sensor and the second weighing sensor in the middle of the first raceway below, second weighing sensor group is including being located third weighing sensor and the fourth weighing sensor in the middle of the second raceway below. The utility model discloses a sensor is reading alternately, and the vehicle error of weighing is at 1kg, and the precision of weighing is high, has guaranteed that the weight of tapping has promoted the molten iron nodulizing rate and product quality is great, can reduce latency simultaneously, improves work efficiency, reduces the equipment input cost.

Description

Molten iron carrying and weighing mechanism

Technical Field

The utility model relates to a molten iron technical field that weighs, in particular to molten iron transport weighing machine constructs.

Background

At present, in the metal smelting and casting industry, molten iron is required to be poured into a ladle for spheroidization after being melted, and the spheroidization of the molten iron is to add a certain amount of spheroidizing agent into the molten iron meeting specific conditions, namely to discharge iron, so that graphite is precipitated in a fine and uniform spherical shape in the solidification process. Thus obtaining cast iron with excellent mechanical properties. This cast iron is called spheroidal graphite cast iron because graphite is spheroidal, and this treatment method is called spheroidizing. The nodulizer commonly used for nodulizing treatment is rare earth silicon magnesium alloy. With the continuous development of economy and the continuous progress of science and technology, the quality of cast products is improved, environment-friendly green casting is started, molten iron spheroidization reaction is started by adopting a wire feeding method, and a magnesium core wire is fed into molten iron through a wire feeding machine, so that the molten iron weighing in the tapping process of a blast furnace is necessary, the wire feeding amount of the wire feeding machine is required to be accurately controlled according to the weight of the molten iron, and the molten iron spheroidization rate and the product quality are ensured.

The existing market has three modes of single-station weighing, fixed weighing and hook-hanging weighing. The traditional casting basically selects a hanging scale type weighing molten iron, and the accuracy of the wire feeding machine is greatly influenced by errors. The crane scale is basically used for lifting and completely weighing, and the weighing error is +/-5 kg; the fixed weighing is basically used for weighing the vehicle, and the weighing error is +/-20 kg; the single-station weighing is basically used for fixed weighing of cargos, and the weighing error is +/-5 kg. The weighing precision is lower, influences the accuracy of wire feeder.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem that the molten iron precision of weighing is low among the correlation technique, provide a molten iron transport weighing machine structure to improve the precision that the molten iron weighed.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a molten iron transport weighing mechanism, includes frame, the balance body and the symmetry sets up the transport mechanism on balance body top, transport mechanism includes first raceway, second raceway, drive module, first raceway and second raceway are respectively through the drive module drive, the both sides of balance body bottom are provided with first weighing sensor group and second weighing sensor group respectively, first weighing sensor group includes that two lay along first raceway rolling direction and be located first weighing sensor and second weighing sensor in the middle of the first raceway below, second weighing sensor group includes that two lay along second raceway rolling direction and be located third weighing sensor and fourth weighing sensor in the middle of the second raceway below.

As the preferred scheme, the frame includes first supporting part, second supporting part and connection bottom plate, the bottom of first supporting part and second supporting part is connected to the connection bottom plate, first supporting part, second supporting part and connection bottom plate form the mounting groove that is used for placing the balance body.

As a preferred scheme, the front end and the rear end of the frame are both provided with guard plates.

As the preferred scheme, the balance body includes roof, platform board and support riser, the roof is located first supporting part and second supporting part top, the platform board sets up inside the mounting groove, two the support riser is used for connecting roof and platform board.

As preferred scheme, the edge at both ends all is provided with the side cover board that is used for sheltering from the gap between roof and the frame top around the roof.

As a preferred scheme, one end of each of the first weighing sensor, the second weighing sensor, the third weighing sensor and the fourth weighing sensor is fixedly connected with the weighing platform panel, the other end of each of the first weighing sensor, the second weighing sensor, the third weighing sensor and the fourth weighing sensor is provided with a positioning plate through an adjustable connecting piece, and the positioning plate is fixedly connected with the connecting bottom plate.

As a preferred scheme, the first roller path and the second roller path respectively comprise a plurality of rotating shafts, the rotating shafts are rotatably installed on the roller path supporting plates through bearings, rollers are sleeved at two ends of each rotating shaft, and retainer rings are arranged on the outer side walls of the rollers.

Preferably, a dust cover is disposed outside the bearing.

Preferably, the driving module comprises a driving motor, a driving gear and a driven gear, wherein the output end of the driving motor is connected with the driving gear, and the driving gear is connected with the driven gear through a chain.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The first roller path and the second roller path are symmetrically arranged at the top end of the scale body and are driven by the driving module to rotate, so that a ladle can be conveniently loaded and unloaded, the stopper ring can limit the ladle, molten iron splashing caused by deflection of the ladle can be avoided, the first roller path and the second roller path are arranged into two relatively independent stations A and B, four shear beam type weighing sensors with threads are selected at the bottom end of the scale body, 0-20mv voltage is fed back to the internal resistance of the shearing force of the sensors by the scale body to realize weight change for the PLC, when the scale is used, the accuracy of the stations A/B is ensured by means of cross reading of the sensors, namely the first weighing sensor and the third weighing sensor feed back voltage to the PLC to display the weight of the station A, the second weighing sensor and the fourth weighing sensor feed back voltage to the PLC to display the weight of the station B, the weighing error is +/-1 kg, the accuracy of the stations A/B can be ensured, the wire feeding amount of the wire feeding machine can be accurately controlled according to the weight of the molten iron, and the nodularity of the product quality is ensured;

(2) Through the double-station setting of the first roller path and the second roller path, two ladles can be placed simultaneously, the ladles on one station are weighed and conveyed to the stokehold treatment trolley after reaching a standard amount, the empty ladles are conveyed to the other station, the stokehold treatment trolley conveys the ladles which are weighed to the wire feeding machine and the casting machine in sequence, the molten iron carrying and weighing mechanism drives the empty ladles to move to the electric furnace for continuous weighing, the two are carried out simultaneously, the waiting time is shortened, the working efficiency is improved, and meanwhile, the equipment investment can be reduced.

Drawings

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

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

FIG. 3 is a schematic perspective view of the scale body of the present invention;

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

FIG. 5 is a schematic side view of the scale body of the present invention;

fig. 6 is a schematic perspective view of the roller of the present invention.

In the figure:

1. a frame; 101. a first support section; 102. a second support portion; 103. connecting the bottom plate; 104. mounting grooves; 2. a scale body; 201. a top plate; 202. a platform panel; 203. a support vertical plate; 3. a first raceway; 4. a second raceway; 5. a drive module; 6. a first weighing sensor group; 601. a first weighing sensor; 602. a second load cell; 7. a second weighing sensor group; 701. a third weighing sensor; 702. a fourth load cell; 8. an edge cover plate; 9. a guard plate; 10. a raceway support plate; 11. a bearing; 12. a rotating shaft; 13. a roller; 1301. a retainer ring; 14. an adjustable connector; 1401. a threaded rod; 1402. a fixed base; 1403. adjusting the nut; 15. and (7) positioning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 6, a molten iron carrying and weighing mechanism includes a vehicle frame 1, a scale body 2 and a carrying mechanism symmetrically disposed at the top end of the scale body 2, wherein the carrying mechanism includes a first raceway 3, a second raceway 4 and a driving module 5, the first raceway 3 and the second raceway 4 are respectively driven by the driving module 5, a first weighing sensor group 6 and a second weighing sensor group 7 are respectively disposed at two sides of the bottom end of the scale body 2, the first weighing sensor group 6 includes a first weighing sensor 601 and a second weighing sensor 602 which are disposed along the rolling direction of the first raceway 3 and are located in the middle below the first raceway 3, and the second weighing sensor group 7 includes a third weighing sensor 701 and a fourth weighing sensor 702 which are disposed along the rolling direction of the second raceway 4 and are located in the middle below the second raceway 4; the four weighing sensors are respectively positioned at four corners of the bottom end of the weighing platform panel 202, the weighing sensors are all shear beam type weighing sensors, the structures of the weighing sensors are the same, the weighing sensors are all in the prior art, no redundancy is given, the weighing body feeds back 0-20mv voltage to PLC through the internal resistance of the shearing force of the sensors to realize weight change, when in weighing, the voltage change of the first weighing sensor 601 and the second weighing sensor 602 on the A station and the third weighing sensor 701 and the fourth weighing sensor 702 on the B station are inconsistent to cause inaccurate weighing, when in use, through a sensor cross reading mode, namely the resistance feedback voltage of the first weighing sensor 601 and the third weighing sensor 701 displays the weight of the A station to PLC, the resistance feedback voltage of the second weighing sensor 602 and the fourth weighing sensor 702 displays the weight of the B station to PLC, the weighing error is +/-1 kg, the accuracy of the A/B station is ensured, the wire feeding amount of the wire feeder can be accurately controlled according to the weight of molten iron, and the spheroidization rate and the great improvement of the product quality are ensured.

In one embodiment, the frame 1 includes a first support 101, a second support 102, and a connection plate 103, the connection plate 103 connects the bottom portions of the first support 101 and the second support 102, and the first support 101, the second support 102, and the connection plate 103 form a mounting slot 104 for placing the scale body 2.

In one embodiment, the frame 1 is provided with guard plates 9 at both front and rear ends thereof for protecting the front and rear ends of the frame 1.

In one embodiment, the scale body 2 includes a top plate 201, a platform plate 202 and support risers 203, the top plate 201 is located above the first support portion 101 and the second support portion 102, the platform plate 202 is disposed inside the mounting groove 104, the two support risers 203 are used for connecting the top plate 201 and the platform plate 202, and the two support risers 203 are respectively disposed in the middle of the bottom ends of the first raceway 3 and the second raceway 4 along the direction perpendicular to the rotating shaft 12.

In one embodiment, the edges of the front end and the rear end of the top plate 201 are provided with the side cover plates 8 for shielding gaps between the top plate 201 and the top end of the frame 1, so that the phenomenon that molten iron leaks and splashes into the top plate 201 and then is clamped with the top plate 201 of the scale body 2 to influence weighing is avoided.

In one embodiment, one end of each of the first weighing sensor 601, the second weighing sensor 602, the third weighing sensor 701 and the fourth weighing sensor 702 is fixedly connected to the platform panel 202, and the other end of each of the first weighing sensor 601, the second weighing sensor 602, the third weighing sensor 701 and the fourth weighing sensor 702 is provided with the positioning plate 15 through the adjustable connecting member 14, specifically, the adjustable connecting member 14 comprises a threaded rod 1401 which is vertically and upwardly arranged, a fixed base 1402 which is fixed at the bottom end of the threaded rod 1401 and an adjusting nut 1403 which is in threaded connection with the threaded rod 1401, the bottom end of the fixed base 1402 is fixedly connected with the positioning plate 15, and the other end of the weighing sensor 1401 is provided with a through hole which the threaded rod can slide up and down.

In an embodiment, the first rolling way 3 and the second rolling way 4 both include a plurality of rotating shafts 12, the rotating shafts 12 are rotatably installed on the rolling way supporting plate 10 through bearings 11, rollers 13 are sleeved at two ends of the rotating shafts 12, the rollers 13 are connected with the rotating shafts 12 in a key manner, the rolling way supporting plate 10 includes vertical plates and transverse plates which are perpendicular to each other, the transverse plates are fixedly installed on the top plate 201 through bolts, abdicating grooves which correspond to the rotating shafts 12 one to one are uniformly formed in the vertical plates, one ends of the rotating shafts 12 penetrate through the abdicating grooves and then are installed on the rolling way supporting plate 10 through the bearings 11, the rotating shafts 12 drive the rollers 13 to rotate, a ladle is transported, retaining rings 1301 for limiting the ladle are arranged on outer side walls of the rollers 13, referring to fig. 6 specifically, when the ladle is transported, two sides of the bottom end of the ladle are abutted against top ends of the rollers 13, two sides are abutted against the retaining rings 1301, the position of the ladle is limited, splashing of molten iron caused by the ladle is avoided, and a shielding effect can be played on the bearings 11, dust covers are arranged outside the bearings 11.

In one embodiment, the driving module 5 comprises a driving motor 5, a driving gear and a driven gear 5, the output end of the driving motor 5 is connected with the driving gear, the driving gear and the driven gear are connected through a chain, the driven gear is located on the rotating shaft 12 outside the raceway supporting plate 10, the driving gear is driven to rotate through the driving motor, the driving gear drives each driven gear to synchronously rotate through the chain, then each rotating shaft 12 and each roller 13 are driven to rotate, a ladle is conveyed, the loading and unloading of the ladle are facilitated, and dust covers are arranged outside the driving gear and the driven gear, so that the blocking is avoided.

Principle of operation

The equipment comprises the following components: the device comprises a molten iron carrying and weighing mechanism, a carrying and processing trolley, a wire feeding machine, a pouring ladle and three ladles, wherein a first rolling way 3 and a second rolling way 4 in the embodiment are named as an A station and a B station respectively, the molten iron carrying is that 3 ladles are recycled, and the 3 ladles are named as a No. 1 ladle, a No. 2 ladle and a No. 3 ladle respectively.

The original position of the device is that a No. 1 ladle is arranged on a casting machine, a No. 2 ladle is arranged on a carrying and processing trolley, a No. 3 ladle is arranged on a station A, an electric furnace starts to lift up to discharge iron from the No. 3 ladle during working, the station A starts to weigh, after the weight of discharged iron reaches 800kg +/-1 kg, a frame 1 starts to move to a cross-over position, a second raceway 4 of the station B is aligned with a raceway of the carrying and processing trolley, the No. 2 ladle on the carrying and processing trolley starts to roll automatically, the No. 2 ladle is conveyed to the station B, the No. 2 ladle reaches the station B, after the sensor senses, the carrying and processing trolley moves backwards, the frame 1 moves to one side close to the carrying and processing trolley, the station A is aligned with the raceway of the carrying and processing trolley, after the two raceways are aligned completely, the first raceway 3 rolls to convey the No. 3 ladle filled with 800kg of molten iron to the raceway of the carrying and processing trolley, the carrying and processing trolley moves backwards to a wire feeding machine, meanwhile, the No. 2 ladle on the frame 1B station moves to the position of the carrying and the discharging trolley, after weighing, the wire, the processing trolley, the wire feeding trolley continues to the carrying and the processing trolley, the carrying and the ladle is moved to the position, the electric furnace is improved, the automatic cycle is improved, the cycle time is 12 minutes, and the improvement is reduced, and the efficiency is improved, and the next time is reduced, and the time is improved, and the efficiency is improved, and the time is improved.

In this embodiment, the detection data of the station a and the station B are as follows:

actual weight (kg)	Station A weight (kg)	B station weight (kg)
			500	501	501
600	601	600
			700	701	700
800	800	800
			900	900	901

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims (9)

1. The utility model provides a molten iron transport weighing machine constructs which characterized in that: including frame (1), the balance body (2) and the symmetry setting transport mechanism on the balance body (2) top, transport mechanism includes first raceway (3), second raceway (4), drive module (5), first raceway (3) and second raceway (4) are respectively through drive module (5) drive, the both sides of the balance body (2) bottom are provided with first weighing sensor group (6) and second weighing sensor group (7) respectively, first weighing sensor group (6) include two first weighing sensor (601) and second weighing sensor (602) that lay along first raceway (3) direction of rolling and be located first raceway (3) below centre, second weighing sensor group (7) include two third weighing sensor (701) and fourth weighing sensor (702) that lay along second raceway (4) direction of rolling and be located second raceway (4) below centre.

2. The molten iron carrying and weighing mechanism according to claim 1, characterized in that: the frame (1) comprises a first supporting part (101), a second supporting part (102) and a connecting bottom plate (103), the connecting bottom plate (103) is connected with the bottoms of the first supporting part (101) and the second supporting part (102), and the first supporting part (101), the second supporting part (102) and the connecting bottom plate (103) form a mounting groove (104) for placing the scale body (2).

3. The molten iron carrying and weighing mechanism according to claim 1, characterized in that: both ends all are provided with backplate (9) around frame (1).

4. The molten iron carrying and weighing mechanism according to claim 1, characterized in that: the balance body (2) comprises a top plate (201), a platform weighing panel (202) and supporting vertical plates (203), wherein the top plate (201) is positioned above a first supporting part (101) and a second supporting part (102), the platform weighing panel (202) is arranged in a mounting groove (104), and the supporting vertical plates (203) are used for connecting the top plate (201) and the platform weighing panel (202).

5. The molten iron carrying and weighing mechanism according to claim 4, characterized in that: the edges of the front end and the rear end of the top plate (201) are provided with side cover plates (8) used for shielding gaps between the top plate (201) and the top end of the frame (1).

6. The molten iron carrying and weighing mechanism according to claim 4, characterized in that: one end of each of the first weighing sensor (601), the second weighing sensor (602), the third weighing sensor (701) and the fourth weighing sensor (702) is fixedly connected with the weighing platform panel (202), the other end of each of the first weighing sensor, the second weighing sensor, the third weighing sensor and the fourth weighing sensor is provided with a positioning plate (15) through an adjustable connecting piece (14), and the positioning plate (15) is fixedly connected with the connecting bottom plate (103).

7. The molten iron carrying and weighing mechanism according to claim 1, characterized in that: first raceway (3) and second raceway (4) all include a plurality of pivots (12), pivot (12) are rotated through bearing (11) and are installed on raceway backup pad (10), gyro wheel (13) have been cup jointed at pivot (12) both ends, be provided with retaining ring (1301) on the lateral wall of gyro wheel (13).

8. The molten iron carrying and weighing mechanism according to claim 7, characterized in that: and a dust cover is arranged on the outer side of the bearing (11).

9. The molten iron carrying and weighing mechanism according to claim 1, characterized in that: the driving module (5) comprises a driving motor, a driving gear and a driven gear, the output end of the driving motor is connected with the driving gear, and the driving gear is connected with the driven gear through a chain.

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