阅读说明：本技术 高炉上料小车钢丝绳收紧调节装置与方法 (Device and method for tightening and adjusting steel wire rope of blast furnace feeding trolley ) 是由 高向明 冯文旭 岳争超 李严 刘丹明 吴向勇 于 2019-12-06 设计创作，主要内容包括：本发明提供了一种高炉上料小车钢丝绳收紧调节装置以及使用该高炉上料小车钢丝绳收紧调节装置的高炉上料小车钢丝绳收紧调节方法。该高炉上料小车钢丝绳收紧调节装置,包括多个链条单元,多个链条单元依次可拆卸式串联连接；链条单元包括异型链板和销轴,销轴穿插在异型链板上；相邻链条单元共用一个销轴。本发明所提供的高炉上料小车钢丝绳收紧调节装置,只需在原有的钢丝绳以及高炉上料小车的结构基础上进行加装即可,无需对钢丝绳以及高炉上料小车进行结构改进,其结构简单,使用方便,并且制造成本低。在对钢丝绳进行收紧时,只需要对链条单元进行拆卸即可,其操作简单易行,效率高。(The invention provides a steel wire rope tightening and adjusting device for a blast furnace feeding trolley and a steel wire rope tightening and adjusting method for the blast furnace feeding trolley by using the steel wire rope tightening and adjusting device for the blast furnace feeding trolley. The steel wire rope tightening and adjusting device for the blast furnace feeding trolley comprises a plurality of chain units, wherein the chain units are sequentially detachably connected in series; the chain unit comprises a special-shaped chain plate and a pin shaft, and the pin shaft is inserted in the special-shaped chain plate; adjacent chain units share a pin. The steel wire rope tightening and adjusting device of the blast furnace feeding trolley provided by the invention is additionally arranged on the basis of the original steel wire rope and the structure of the blast furnace feeding trolley, the steel wire rope and the blast furnace feeding trolley do not need to be structurally improved, and the device is simple in structure, convenient to use and low in manufacturing cost. When the steel wire rope is tightened, only the chain unit needs to be disassembled, so that the operation is simple and easy, and the efficiency is high.)

1. A steel wire rope tightening and adjusting device of a blast furnace feeding trolley, which is characterized in that,

the chain mechanism comprises a plurality of chain units which are sequentially detachably connected in series;

the chain unit comprises a special-shaped chain plate (1) and a pin shaft (4), and the pin shaft is inserted in the special-shaped chain plate; and adjacent chain units share one pin shaft.

2. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 1,

in one chain unit, there are two special-shaped chain plates, and the two special-shaped chain plates are symmetrically arranged.

3. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 1,

the special-shaped chain plate is provided with a front end opening (2) and a tail end opening (3);

in two adjacent chain units, the front end opening of the chain unit at the rear side and the tail end opening of the chain unit at the front side are oppositely arranged, and the pin shaft is arranged in the two opposite openings.

4. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 3,

the special-shaped chain plate comprises a front section (5), a middle section (6) and a tail section (7), wherein the front section is of a flat plate type structure, the tail section is of a flat plate type structure, the middle section is of a curve structure, the front section and the tail section are respectively arranged at two ends of the middle section, and the front section and the tail section are arranged in parallel;

the front section is provided with the front end opening, and the tail section is provided with the tail end opening.

5. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 4,

in the same chain unit, the front sections of the two special-shaped chain plates are arranged close to each other, and the tail sections of the two special-shaped chain plates are arranged at intervals and form a fit clearance for inserting the front sections.

6. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 3,

a pin shaft cap (8) with the cross section diameter larger than the diameter of the tail end opening hole is arranged at one end of the pin shaft, and an open pin hole is formed at the other end of the pin shaft;

a cotter pin (9) is arranged through the cotter pin hole;

the pin shaft is sleeved with a gasket, and the gasket is arranged between the special-shaped chain plate and the split pin.

7. The tightening and adjusting device for the steel wire rope of the charging trolley of the blast furnace as claimed in claim 4,

the corner of the middle section is a fillet transition corner;

the end faces of the front section and the tail section are arc faces, the circle center of the arc face of the front section coincides with that of the front end opening, and the circle center of the arc face of the tail section coincides with that of the tail end opening.

8. The wire rope tightening and adjusting device for the charging trolley of the blast furnace as claimed in any one of claims 1 to 7,

the special-shaped chain plate is of a central symmetrical structure;

the special-shaped chain plate is a metal special-shaped chain plate and is of an integrated structure.

9. A method for tightening and adjusting a steel wire rope of a blast furnace charging trolley, which is characterized in that,

the connection between the charging trolley and the steel wire rope is realized by using the steel wire rope tightening and adjusting device of the charging trolley of the blast furnace as claimed in any one of claims 1 to 8;

and when the steel wire rope is deformed, the chain unit of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is disassembled to realize the tightening of the steel wire rope.

10. The method for adjusting the tightening of a steel wire rope of a charging trolley for a blast furnace as claimed in claim 9,

firstly, stopping a blast furnace feeding trolley to a proper position, and fixing the feeding trolley by using an auxiliary steel wire rope and a shackle;

then adjusting the position of the blast furnace feeding trolley to enable the steel wire rope tightening and adjusting device of the blast furnace feeding trolley to be in a loose state;

then, the chain unit is dismantled according to the deformation of the steel wire rope;

and finally, adjusting the position of the feeding trolley to enable the auxiliary steel wire rope to be in a loose state, disassembling the shackle and finishing the quick adjustment operation of the feeding trolley of the blast furnace by the auxiliary steel wire rope.

Technical Field

The invention relates to the technical field of blast furnace feeding equipment, in particular to a steel wire rope tightening and adjusting device and a steel wire rope tightening and adjusting method for a blast furnace feeding trolley.

Background

In the production process of the blast furnace, the feeding of the blast furnace is realized through a feeding trolley which is pulled through a steel wire rope. After the steel wire rope is used for a period of time, the steel wire rope can deform (stretch and extend), so that the steel wire rope newly replaced by the blast furnace feeding trolley needs to be effectively tightened and adjusted due to certain stretching length after the steel wire rope is used for a period of time, and normal operation of equipment is ensured.

In the prior art, because the steel wire rope of the blast furnace feeding trolley is not provided with an effective adjusting device, the problems of tedious adjustment, poor flexibility, long time consumption and the like exist in the traditional adjusting method, and due to the problems, the normal feeding of the blast furnace is influenced, the blast furnace stops blowing, the yield is reduced and the like.

In addition, for the adjustment of the steel wire rope of the feeding trolley, after the blast furnace such as 5-6 equipment maintenance personnel and the like is shut down in advance in each adjustment operation, the steel wire rope is effectively adjusted on site according to the elongation condition of the steel wire rope, and the adjustment mode has serious waste of human resources.

At present, there is not an adjusting device who tightens up fast to blast furnace material loading dolly wire rope in prior art, and through the on-the-spot regulation mode analysis to blast furnace material loading dolly wire rope, traditional blast furnace material loading dolly wire rope tightens up the regulation mode fast and summarizes mainly to have following characteristic and shortcoming:

(1) the traditional steel wire rope adjusting device for the blast furnace feeding trolley adopts a steel wire rope clamp connection mode, and the device needs a maintenance worker to disassemble 5 rope clamps on site, then use manpower to tighten up the steel wire rope, and then install the 5 steel wire rope clamps again, so that the work is complicated, the operation time is long, and the labor intensity is high;

(2) the length of the steel wire rope tightened by manpower of the blast furnace feeding trolley is not accurate enough, so that the difficulty in adjusting the encoder of an electrical appliance system is increased, the adjustment time is too long, and the production of the blast furnace is influenced;

(3) the blast furnace feeding system is provided with two feeding trolleys, and because the steel wire ropes are tightened by full manpower, the force is limited, and the operation difficulty is increased along with the reduction of the physical strength of personnel.

Disclosure of Invention

Therefore, how to solve the problems of complex operation and poor adjustment flexibility of the steel wire rope adjustment of the feeding trolley in the prior art becomes a problem to be solved urgently by technical personnel in the field.

In order to solve the problems of the prior art, the invention provides the following technical scheme:

the invention provides a steel wire rope tightening and adjusting device of a blast furnace feeding trolley, which comprises a plurality of chain units, wherein the chain units are sequentially detachably connected in series; the chain unit comprises a special-shaped chain plate and a pin shaft, and the pin shaft is inserted in the special-shaped chain plate; and adjacent chain units share one pin shaft.

Preferably, in the wire rope tightening and adjusting device for the blast furnace charging trolley provided by the invention, two special-shaped chain plates are arranged in one chain unit, and the two special-shaped chain plates are symmetrically arranged.

Preferably, in the wire rope tightening and adjusting device for the blast furnace feeding trolley provided by the invention, the special-shaped chain plate is provided with a front end opening and a tail end opening; in two adjacent chain units, the front end opening of the chain unit at the rear side and the tail end opening of the chain unit at the front side are oppositely arranged, and the pin shaft is arranged in the two opposite openings.

Preferably, in the device for tightening and adjusting the steel wire rope of the blast furnace charging trolley provided by the invention, the special-shaped chain plate comprises a front section, a middle section and a tail section, wherein the front section is of a flat plate type structure, the tail section is of a flat plate type structure, the middle section is of a curved structure, the front section and the tail section are respectively arranged at two ends of the middle section, and the front section and the tail section are arranged in parallel; the front section is provided with the front end opening, and the tail section is provided with the tail end opening.

Preferably, in the wire rope tightening and adjusting device for the charging trolley of the blast furnace, in the same chain unit, the front sections of the two special-shaped chain plates are arranged close to each other, and the tail sections of the two special-shaped chain plates are arranged at intervals and form a fit clearance for inserting the front sections.

Preferably, in the device for tightening and adjusting the steel wire rope of the blast furnace feeding trolley provided by the invention, one end of the pin shaft is provided with a pin shaft cap with a cross section diameter larger than that of the tail opening hole, and the other end of the pin shaft is provided with an opening pin hole; a cotter pin is arranged through the cotter pin hole; the pin shaft is sleeved with a gasket, and the gasket is arranged between the special-shaped chain plate and the split pin.

Preferably, in the device for tightening and adjusting the steel wire rope of the blast furnace charging trolley provided by the invention, the corner of the middle section is a fillet transition corner; the end faces of the front section and the tail section are arc faces, the circle center of the arc face of the front section coincides with that of the front end opening, and the circle center of the arc face of the tail section coincides with that of the tail end opening.

Preferably, in the wire rope tightening and adjusting device for the blast furnace feeding trolley provided by the invention, the special-shaped chain plate is of a centrosymmetric structure; the special-shaped chain plate is a metal special-shaped chain plate and is of an integrated structure.

The invention also provides a method for tightening and adjusting the steel wire rope of the blast furnace feeding trolley, and in the method for tightening and adjusting the steel wire rope of the blast furnace feeding trolley, the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is used for realizing the connection between the feeding trolley and the steel wire rope; and when the steel wire rope is deformed, the chain unit of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is disassembled to realize the tightening of the steel wire rope.

Preferably, in the method for tightening and adjusting the steel wire rope of the blast furnace feeding trolley, the blast furnace feeding trolley is firstly stopped to a proper position, and the feeding trolley is fixed by using an auxiliary steel wire rope and a shackle; then adjusting the position of the blast furnace feeding trolley to enable the steel wire rope tightening and adjusting device of the blast furnace feeding trolley to be in a loose state; then, the chain unit is dismantled according to the deformation of the steel wire rope; and finally, adjusting the position of the feeding trolley to enable the auxiliary steel wire rope to be in a loose state, disassembling the shackle and finishing the quick adjustment operation of the feeding trolley of the blast furnace by the auxiliary steel wire rope.

The invention has the following beneficial effects:

the invention provides a steel wire rope tightening and adjusting device for a blast furnace feeding trolley and a steel wire rope tightening and adjusting method for the blast furnace feeding trolley by using the steel wire rope tightening and adjusting device for the blast furnace feeding trolley. The invention provides a steel wire rope tightening and adjusting device of a blast furnace feeding trolley, which comprises special-shaped chain plates, wherein two special-shaped chain plates are taken as a group, the two special-shaped chain plates in the same group are arranged in a mirror symmetry mode to form a chain unit, the chain unit is provided with a plurality of chain units, all the chain units are sequentially arranged, and the two adjacent chain units are detachably connected.

Through the structural design, the invention has the following beneficial effects:

(1) the design is ingenious, the structure is simple, and the manufacturing cost is low.

The steel wire rope tightening and adjusting device of the blast furnace feeding trolley provided by the invention is additionally arranged on the basis of the original steel wire rope and the structure of the blast furnace feeding trolley, the steel wire rope and the blast furnace feeding trolley do not need to be structurally improved, and the device is simple in structure, convenient to use and low in manufacturing cost.

(2) The dismouting is convenient, and consuming time is few.

According to the wire rope tightening and adjusting device for the blast furnace feeding trolley, after the wire rope tightening and adjusting device is installed on the wire rope and the blast furnace feeding trolley, only the chain unit needs to be disassembled when the wire rope is tightened, only the two pin shafts need to be disassembled or reinstalled when the chain unit is disassembled, compared with the traditional wire rope buckling and adjusting device, the wire rope tightening and adjusting device for the blast furnace feeding trolley is less in adjusting time, and can complete the wire rope tightening and adjusting operation of the blast furnace feeding trolley within 10 minutes.

(3) The adjustability is more flexible.

The steel wire rope tightening and adjusting device for the blast furnace feeding trolley, provided by the invention, can be used for disassembling a single group of chain units or a double group of chain units, and has better adjusting flexibility than the conventional steel wire rope buckling connection.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:

FIG. 1 is a schematic structural view of a steel wire rope tightening and adjusting device of a blast furnace charging trolley in a use state according to an embodiment of the invention;

fig. 2 is a schematic structural view of a special-shaped link plate according to an embodiment of the present invention;

FIG. 3 is a top view of a profiled link plate according to an embodiment of the present invention;

description of reference numerals:

the special-shaped chain plate comprises a special-shaped chain plate 1, a front end opening 2, a tail end opening 3, a pin shaft 4, a front section 5, a middle section 6, a tail section 7, a pin shaft cap 8, a split pin 9, a blast furnace feeding trolley 10, a connecting shaft 11, a connecting plate 12, a fork-shaped connecting arm 13 and a steel wire rope 14.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.

In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1 to 3, in which, fig. 1 is a schematic structural view of a steel wire rope tightening and adjusting device of a charging trolley of a blast furnace in a use state according to an embodiment of the present invention; fig. 2 is a schematic structural view of a special-shaped link plate according to an embodiment of the present invention; fig. 3 is a top view of the profiled link plate according to an embodiment of the present invention.

The invention provides a steel wire rope tightening and adjusting device for a blast furnace feeding trolley, belongs to the technical field of metallurgy, and particularly relates to a field practical device.

In the invention, the wire rope tightening and adjusting device of the blast furnace charging trolley comprises a special-shaped chain plate 1, a pin shaft 4, a gasket, a split pin 9 and other accessory facilities (such as a bolt for connecting a wire rope and the like). The invention is arranged between a blast furnace feeding trolley and a steel wire rope (original structure), and when the steel wire rope is stretched and deformed, the steel wire rope needs to be tightened. During tightening operation, firstly, stopping the blast furnace feeding trolley to a proper position according to on-site judgment, locking the feeding trolley by using an auxiliary steel wire rope and a shackle, slowly dropping the feeding trolley to enable the steel wire rope adjusting device to be in a loose state, then disassembling the special-shaped chain plate cotter pin 9 and the pin shaft 4 of the steel wire rope adjusting device, reducing 1-2 sections of the special-shaped chain plate, re-installing the pin shaft 4 and the cotter pin 9, then upwards dragging the feeding trolley to enable the auxiliary steel wire rope to be in a loose state, disassembling the shackle and finishing operation of the auxiliary steel wire rope.

The invention provides a steel wire rope tightening and adjusting device for a blast furnace feeding trolley, which is arranged between the blast furnace feeding trolley and a steel wire rope drawn by an original blast furnace feeding trolley and is used for adjusting the length (tightening and adjusting) of the steel wire rope after the steel wire rope is deformed and stretched.

The invention provides a steel wire rope tightening and adjusting device of a blast furnace feeding trolley, which comprises a special-shaped chain plate 1, wherein the special-shaped chain plate 1 can be divided into the following parts according to the structural characteristics: anterior segment 5, middle section 6 and tail section 7, wherein, anterior segment 5 is flat structure, and tail section 7 is flat structure, and middle section 6 is the curve structure, and middle section 6 is for being similar to S type structure, and the both ends of middle section 6 are located respectively to anterior segment 5 and tail section 7 to, anterior segment 5 and tail section 7 parallel arrangement.

In order to describe the structure of the special-shaped chain plate 1 more clearly, the cross section of the special-shaped chain plate 1 is taken, the front section 5 and the tail section 7 are in a straight shape, the middle section 6 is approximately in an S shape, and the front section 5 and the tail section 7 are arranged at two ends of the middle section 6 and are parallel.

The special-shaped chain plate 1 formed by the front section 5, the middle section 6 and the tail section 7 is of an integrated structure, and in the special-shaped chain plate 1, the end surfaces of the front section 5 and the tail section 7 adopt the arc surface structure design. Further, the center of the arc surface of the front section 5 coincides with the center of the front opening (the structure of the front section 5), and the center of the arc surface of the tail section 7 coincides with the center of the tail opening (the structure of the tail section 7). The optimized design can improve the structural strength and the deformation resistance of the special-shaped chain plate 1, and meanwhile, the end face of the special-shaped chain plate 1 is designed to be an arc surface structure, so that the special-shaped chain plate 1 can be conveniently processed and manufactured.

In the present invention, the curved corner portions of the middle section 6 have a smooth circular arc structure.

The special-shaped chain plate 1 is divided into a front section 5, a middle section 6 and a tail section 7 according to the structure of the special-shaped chain plate 1, and in order to ensure that the special-shaped chain plate 1 has high structural strength, the special-shaped chain plate 1 is a metal special-shaped chain plate 1 made of metal, and the special-shaped chain plate 1 is of an integrated structure.

In order to solve the problems of complicated operation and poor adjustment flexibility of the steel wire rope adjustment of the feeding trolley in the prior art, the steel wire rope tightening and adjusting device of the blast furnace feeding trolley provided by the invention has the core conception of structural design as follows: the chain mechanism comprises a plurality of chain units which are sequentially detachably connected in series; the chain unit comprises a special-shaped chain plate 1 and a pin shaft 4, and the pin shaft 4 is inserted in the special-shaped chain plate 1; adjacent chain units share a pin 4.

The invention can adopt the following specific structural forms:

1. the chain unit is only provided with one special-shaped chain plate 1, and the special-shaped chain plate 1 adopts the structural design as above (namely, the special-shaped chain plate 1 comprises a front section 5, a middle section 6 and a tail section 7). The special-shaped chain plates 1 are sequentially arranged and are in end-to-end connection, and the front section 5 of the previous special-shaped chain plate 1 is connected with the tail end 7 of the next special-shaped chain plate 1 through a pin shaft 4. And through the limited structural design of designers, due to the existence of the middle section 6, after the plurality of special-shaped chain plates 1 are assembled, a chain structure which is similar to a cuboid as a whole can be formed.

2. The chain unit sets up two heterotypic link joint 1, and heterotypic link joint 1 adopts like above-mentioned structural design (promptly heterotypic link joint 1 includes anterior segment 5, middle section 6 and tail-end 7). The two special-shaped chain plates 1 forming the chain unit are two independent components, and the two special-shaped chain plates 1 are arranged in a mirror symmetry mode. On the basis of the previous embodiment, the structure is additionally provided with the special-shaped chain plate 1, so that the chain unit is stressed symmetrically, and the using stability of the chain is improved.

3. Based on the second embodiment, the chain unit is provided with two special-shaped chain plates 1, the special-shaped chain plates 1 are designed as above (i.e. the special-shaped chain plates 1 comprise a front section 5, a middle section 6 and a tail section 7), and the two special-shaped chain plates 1 are symmetrically arranged and adopt an integrated structure, so that the structural strength of the chain unit can be improved.

In order to realize the length adjustment of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley, two special-shaped chain plates are taken as a group, two special-shaped chain plates 1 in the same group are arranged in a mirror symmetry mode and form a chain unit, the chain unit is provided with a plurality of chain units, all the chain units are sequentially arranged, and two adjacent chain units are detachably connected.

In order to improve the precision of the chain unit length adjustment, the chain unit length is reduced as much as possible on the premise of ensuring the structural strength of the chain unit.

Therefore, the two adjacent chain units are connected in a detachable mode, and the connecting structure specifically comprises: the special-shaped chain plate 1 is provided with a front end opening 2 and a tail end opening 3, in two adjacent chain units, the front end opening 2 of the chain unit at the rear side and the tail end opening 3 of the chain unit at the front side are oppositely arranged, and pin shafts 4 are arranged in the two opposite openings to realize detachable connection between the chain units. The special-shaped chain plate 1 comprises a front section 5, a middle section 6 and a tail section 7, specifically, a front end opening 2 is formed in the front section 5, and a tail end opening 3 is formed in the tail section 7.

The connecting structure between the chain units is as follows: in the same chain unit, the front sections 5 of the two special-shaped chain plates 1 are arranged close to each other, and the tail sections 7 of the two special-shaped chain plates 1 are arranged at intervals and form a fit clearance for inserting the front sections 5.

Specifically, the structure of the pin 4 is as follows: one end of the pin shaft 4 is provided with a pin shaft cap 8 with the diameter of the cross section larger than that of the tail end opening hole 3, and the other end of the pin shaft 4 is provided with a split pin hole for a split pin 9 to pass through.

The invention also provides a method for tightening and adjusting the steel wire rope of the blast furnace charging trolley, which uses the device for tightening and adjusting the steel wire rope of the blast furnace charging trolley to realize the connection between the charging trolley and the steel wire rope; when the steel wire rope is deformed, the chain unit of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is disassembled to realize the tightening of the steel wire rope.

Two round holes (a front end opening 2 and a tail end opening 3) with the diameter of 40mm are designed and processed at the two ends of the special-shaped chain plate, so that the pin shaft 4 can be conveniently connected. The middle section 6 is of an S-shaped structure, and transition arc structures are respectively designed and processed at the bending part of the middle section 6, the front section 5 and the end part of the tail section 7, so that the phenomena of fracture and tensile crack of a local structure on the special-shaped chain plate caused by stress concentration in the use process can be avoided.

The pin shaft 4 is a pin shaft with the diameter of 40mm, one end of the pin shaft 4 is provided with a pin shaft cap 8, the other end of the pin shaft 4 is provided with a round hole (split pin hole) with the diameter of 7mm, the split pin 9 is convenient to install, the pin shaft cap 8 and the split pin 9 are arranged on the pin shaft 4, the reliability of the invention in the operation process can be ensured, and the problem that the pin shaft 4 falls off to influence the blast furnace feeding production due to the abrasion of the pin shaft 4 in the operation process can be prevented.

In one embodiment of the invention, the steel wire rope tightening and adjusting device of the blast furnace charging trolley comprises five chain units consisting of ten special-shaped chain plates, and all the chain units are sequentially arranged and connected in a straight shape. One end of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is connected to the blast furnace feeding trolley 10, and the concrete connection structure is as follows: the blast furnace feeding trolley 10 is connected with a connecting plate 12 through a vertically arranged connecting shaft 11, one end of the connecting plate 12 is provided with a connecting hole matched with the connecting shaft 11, the other end of the connecting plate 12 is provided with a fork-shaped connecting arm 13, and the fork-shaped connecting arm 13 is hinged with a steel wire rope tightening and adjusting device of the blast furnace feeding trolley, so that universal connection between the steel wire rope tightening and adjusting device of the blast furnace feeding trolley and the blast furnace feeding trolley 10 can be realized through the connecting plate 12. The other end of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley is connected to a steel wire rope 14, and the concrete connection structure is as follows: and the steel wire rope 14 is wound on the pin shaft 4 at the end part of the steel wire rope tightening and adjusting device of the blast furnace feeding trolley.

The invention is matched with the steel wire rope for use, so that the chain unit can be disassembled according to the stretching length of the steel wire rope.

The invention has the advantages of simple and practical structure, reasonable design, safety, reliability, low manufacturing cost and the like. The blast furnace feeding trolley adopts the special-shaped chain plate adjusting device which is detachably arranged, and the length of a steel wire rope of the blast furnace feeding trolley can be effectively adjusted. The invention ensures that the device can be quickly, safely and effectively tightened and adjusted in the operation process, reduces the maintenance time of single equipment, reduces the labor intensity of workers, effectively reduces the damping down rate of the blast furnace, ensures the normal operation of the blast furnace production, improves the operation efficiency and realizes the requirement of 'single mold changing' in lean production. Compared with the original shutdown processing mode, the single-division mode switching can realize the non-shutdown processing after improvement.

Through the structural design, the invention has the following beneficial effects:

(1) the design is ingenious, the structure is simple, and the manufacturing cost is low.

The steel wire rope tightening and adjusting device of the blast furnace feeding trolley provided by the invention is additionally arranged on the basis of the original steel wire rope and the structure of the blast furnace feeding trolley, the steel wire rope and the blast furnace feeding trolley do not need to be structurally improved, and the device is simple in structure, convenient to use and low in manufacturing cost.

(2) The dismouting is convenient, and consuming time is few.

According to the steel wire rope tightening and adjusting device for the blast furnace feeding trolley, after the steel wire rope tightening and adjusting device is installed on the steel wire rope and the blast furnace feeding trolley, only the chain unit needs to be disassembled when the steel wire rope is tightened, only the two pin shafts 4 need to be disassembled or reinstalled when the chain unit is disassembled and assembled, compared with the traditional steel wire rope buckling and adjusting device, the steel wire rope tightening and adjusting device for the blast furnace feeding trolley is less in adjusting time, and can complete the steel wire rope tightening and adjusting operation of the blast furnace feeding trolley within 10 minutes.

(3) The adjustability is more flexible.

The steel wire rope tightening and adjusting device for the blast furnace feeding trolley, provided by the invention, can be used for disassembling a single group of chain units or a double group of chain units, and has better adjustment flexibility than the traditional steel wire rope buckle connection (10 buckles need to be disassembled and then 10 buckles need to be installed again).

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.