CN113134723B

CN113134723B - Assembly, system and method for replacing cold shearing tool of bar and wire cold shearing machine

Info

Publication number: CN113134723B
Application number: CN202110589175.0A
Authority: CN
Inventors: 蔡海彬; 查安鸿; 杨超峰; 潘志国; 唐叶财; 肖志礼; 姜宏; 朱新才
Original assignee: SGIS Songshan Co Ltd
Current assignee: SGIS Songshan Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-06-21
Anticipated expiration: 2041-05-27
Also published as: CN113134723A

Abstract

The application provides a component, a system and a method for replacing a cold shearing tool of a rod and wire cold shearing machine, and relates to the field of rod and wire cold shearing production. The subassembly includes two bearing wheels and hoist, every bearing wheel is used for bearing cold shears cutter and with cold shears cutter rolling contact, the hoist includes the body, retaining member and hoist and mount piece, the body includes two splint, and two relative and parallel arrangement's cleft hand connected through splint, every cleft hand has the spacing groove of the spacing portion of centre gripping, hoist and mount piece is connected with the diaphragm of two cleft hands respectively, hoist and mount piece is equipped with the hole for hoist and mount that is used for installing the lifting rope, retaining member and diaphragm threaded connection for will install the cold shears cutter and the selective locking of body in the spacing inslot. This subassembly is only under the prerequisite of installing a hoist at every cold shears cutter, and high levelness requirement when not only can satisfying the hoist and mount reduces the change degree of difficulty, simplifies the hoist and mount process and improves work efficiency, can also reduce the safe risk that the thing that hangs falls.

Description

Assembly, system and method for replacing cold shearing tool of bar and wire cold shearing machine

Technical Field

The application relates to the field of cold shearing production of bars and wires, in particular to a component, a system and a method for replacing a cold shearing cutter of a cold shearing machine for bars and wires.

Background

The cold shearing of the bar wire is a key process for improving the yield of the product and ensuring the shearing quality of the section of the product, the cutter replacement is a project which must be completed in each overhaul, the cutter replacement in the prior art uses a steel wire rope to lock a cutter box, a chain block is hung, and the chain block is hoisted and replaced by a travelling crane.

The hoisting mode leads to very complicated hoisting each time. And actual knife rest is longer, it requires highly to hoist and mount levelness, wire rope hoist and mount position levelness is not good to be mastered, it is very big to change the degree of difficulty, and hoist and mount at every turn and all need adjust the wire rope position repeatedly, cause the maintenance duration extension, and the easy risk that appears skidding extrusion operation personnel of hoist and mount in-process, there is the potential safety hazard, and because the cutting edge of cold shear cutter is very sharp, need the cornerite when the hoist and mount of above-mentioned hoist and mount mode, it is big to cause the wire rope bending damage, the sharp cutting edge does not cornerite simultaneously and cuts off wire rope easily, cause the safety risk that the thing that hangs falls.

Disclosure of Invention

An object of the embodiment of the application is to provide an assembly, a system and a method for changing a cold shearing tool of a rod line cold shearing machine, which can simplify the hoisting process, reduce the replacement difficulty while meeting the high-level requirement during hoisting, and avoid the safety risk of falling of a hoisted object.

First aspect, this application embodiment provides a subassembly that is used for stick line cold shears to change cold shears cutter, stick line cold shears's cold shears cutter has spacing portion including setting up the installation department of access & exit, the one end that the cold shears cutter deviates from the cutting edge, and the subassembly includes bearing wheelset and hoist.

The bearing wheelset includes two bearing wheels, and two bearing wheels are used for installing in the entrance, and two bearing wheel interval arrangements are in order to form the passageway that supplies cold scissors cutter to penetrate, passageway and access & exit intercommunication, every bearing wheel be used for bearing cold scissors cutter and with cold scissors cutter rolling contact.

The lifting appliance comprises a body, a locking piece and a lifting piece.

The body comprises two clamping plates and two opposite and parallel arranged claws, the distance between the two claws is 0.1-0.25 times of the length of the cold shearing tool, each claw comprises a transverse plate and two inner fasteners respectively arranged at two ends of the transverse plate, one side, opposite to each other, of each inner fastener gradually shrinks towards one side away from the transverse plate from the position close to the transverse plate, two inner fasteners and the transverse plate form a limiting groove for clamping a limiting part, and each clamping plate is connected with two inner fasteners opposite to each other.

The hoisting piece is connected with the transverse plates of the two claws respectively, the hoisting piece is located on one side, deviating from the limiting groove, of the transverse plate, and the hoisting piece is provided with a hoisting hole for installing a hoisting rope.

The quantity of retaining member is two, and two retaining members are along the focus symmetrical arrangement of hoist and mount piece, and every retaining member is located the extension line of the focus line of two cleft hands, and every retaining member and diaphragm threaded connection for will install cold shears cutter and body locking or the unblock in the spacing inslot.

Because the cold shearing tools are large in size and heavy (500-1000 kg), and compared with hoisting of a rail, the number of the hoists of each cold shearing tool is limited, and only one hoist is allowed to be installed on each cold shearing tool, high-level hoisting needs to be realized, and therefore the replacement difficulty is also large. And adopt above-mentioned a subassembly that is used for stick line cold shears to change cold shears cutter, under the prerequisite that every cold shears cutter only installed a hoist, not only can satisfy the high levelness requirement when hoist and mount, reduce the change degree of difficulty simultaneously, simplify the hoist and mount process and improve work efficiency, can also reduce the safe risk that the thing falls of hanging.

Specifically, adopt the setting of above-mentioned bearing wheelset, can bear the cold shears cutter when changing the cold shears cutter on the one hand, on the other hand utilizes the mode of rolling contact to reduce the frictional force between cold shears cutter and the bearing wheel, guarantees to change the stationarity of cold shears cutter, to the influence of stick line cold shears when reducing the installation, can guarantee the levelness of cold shears cutter when hoist and mount simultaneously.

The distance between the two claws is limited to be 0.1-0.25 times of the length of the cold shearing tool, the body is ensured to have enough width, the cold shearing tool can be lifted at a high level on the premise that each cold shearing tool is provided with a lifting appliance, the lifting holes and the limiting grooves are arranged on two opposite sides of the transverse plate respectively, the contact between a lifting rope and the cutting edges of the cold shearing tool in the actual use process is avoided, therefore, wrap angles are not needed during lifting, and the lifting process is simplified. Adopt two claws relative and parallel arrangement's mode, can keep the focus of hoist between two parties, the levelness requirement of cold shear cutter when easily satisfying the installation, and splint and hoist and mount piece set up and then can guarantee that two claws integration set up, and the atress is balanced. Two locking screw rods are symmetrically arranged along the lifting hole, and the center of gravity can be further ensured to be centered by the arrangement of the extension line of the center of gravity connecting line of each locking piece positioned on the two claws, and only one lifting appliance is arranged through the arrangement of the parts, so that the lifting of the cold shearing tool with the weight of 500 plus 1000kg can be realized under higher levelness. The size of spacing groove still can be adjusted in the setting of retaining member simultaneously, and then will install the cold shears cutter and the body locking in the spacing inslot according to actual demand to the cold shears cutter and the body relative movement of restriction installation avoid producing potential safety hazards such as slip, also can be according to actual demand unblock cold shears cutter and body.

In a second aspect, the present application provides a system for replacing a cold shearing tool of a cold shearing machine for rod and line, including:

the utility model provides a subassembly and overhead traveling crane that is used for stick line cold shears machine to change cold shears cutter that this application first aspect provided.

The number of the lifting appliances in the assembly is two, the two lifting appliances are respectively used as a first lifting appliance and a second lifting appliance, and the crown block is detachably connected with the first lifting appliance and the second lifting appliance through lifting ropes.

In the implementation process, the lifting appliance is lifted or moved downwards by utilizing the movement of the crown block, the use is convenient and labor-saving, and meanwhile, due to the existence of the components, the actual cold shear cutter can be lifted at a higher levelness, the replacement is safe and convenient, and the working efficiency is improved. And the subassembly that the quantity that adopts the hoist is two compares the subassembly that the quantity that is one in the hoist, and it is higher to change efficiency when changing the cold shears cutter, can adopt one of them hoist, and for example first hoist will be waited to change the cold shears cutter and take out from the rod line cold shears to adopt another hoist, also be the second hoist with new cold shears cutter installation to the rod line cold shears.

In a third aspect, an embodiment of the present application provides a method for replacing a cold shearing tool of a rod and thread cold shearing machine, which is implemented by using the system for replacing a cold shearing tool of a rod and thread cold shearing machine provided in the second aspect of the present application, wherein before replacing the cold shearing tool, a bearing wheel set is installed at an entrance in advance, a channel communicated with the entrance is formed between two bearing wheels of the bearing wheel set, and each bearing wheel is used for bearing the cold shearing tool and is in rolling contact with the cold shearing tool, and the method for replacing the cold shearing tool of the rod and thread cold shearing machine includes:

s1, pushing out the cold shearing tool to be replaced in the rod line cold shearing machine through an inlet, an outlet and a channel in sequence, when the cold shearing tool is pushed out to the position that 1/2 of the cold shearing tool is exposed, unlocking a locking piece of a first lifting appliance, lifting the first lifting appliance by using a crown block, sleeving the first lifting appliance into the pushed end of the cold shearing tool along the length direction of the cold shearing tool, moving the first lifting appliance to the position 1/2 of the cold shearing tool on the premise that the first lifting appliance is not in contact with the limiting part, then moving the first lifting appliance upwards to enable the limiting part to be attached to a clamping plate of the first lifting appliance, locking the locking piece to limit the relative movement of the cold shearing tool and the first lifting appliance, and continuously pushing out the rest cold shearing tool, and then lifting the cold shearing tool locked by the first lifting appliance away from the rod line cold shearing machine.

S2, unlocking a locking piece of a second lifting appliance, sleeving the second lifting appliance into a position 1/2 of the cold shearing tool in a non-contact manner along the length direction of the new cold shearing tool, moving the second lifting appliance upwards to enable the limiting part to be attached to a clamping plate of the second lifting appliance, locking the corresponding locking piece to limit the relative movement of the cold shearing tool and the second lifting appliance, lifting the second lifting appliance by using a crown block, loading the cold shearing tool locked by the second lifting appliance into the rod line cold shearing machine sequentially through a channel and an access, when the cold shearing tool is loaded to 1/2 of the cold shearing tool, moving the second lifting appliance downwards to enable the limiting part to be free of contact with the second lifting appliance after unlocking the corresponding locking piece, and then pushing all the cold shearing tools into the rod line cold shearing machine.

In the implementation process, the cold shears to be replaced in the cold shearing machine for the rod and the thread are taken out in the step S1, and then the new cold shears are loaded into the cold shearing machine for the rod and the thread is replaced conveniently in the step S2. Adopt above-mentioned hoist to change cold shears cutter, under the prerequisite that every cold shears cutter only needs a hoist, not only can satisfy the high levelness requirement when hoist and mount, reduce simultaneously and change the degree of difficulty, simplify the hoist and mount process and improve work efficiency, can also reduce the safe risk that the thing of hanging falls. Meanwhile, the cold shearing tool is sleeved in and moved to the center of the cold shearing tool without contact, the influence on the stability of the cold shearing tool in the sleeving process of the lifting appliance can be avoided, then the relative movement of the cold shearing tool and the body can be effectively limited through the arrangement of the inner buckle and the arrangement of the locking piece, and the stability of the cold shearing tool in the moving process is kept.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a first perspective of a cold shears tool and spreader;

FIG. 2 is a schematic view of one of the positions of the cold shears and the supporting wheel;

FIG. 3 is a schematic view showing another positional relationship between the cold shears and the supporting wheel;

FIG. 4 is a schematic diagram of a second perspective of the cold shears tool and spreader;

fig. 5 is a schematic structural diagram of a first viewing angle of the cold shears.

Icon: 10-cold shearing of the tool; 100-a knife box; 101-a limiting part; 110-a cold shear blade; 201-a supporting wheel; 210-a spreader; 220-a body; 221-paw hand; 222-a transverse plate; 223-inner fasteners; 225-a limit groove; 2251-a first trench section; 2253-a second trench; 227-splint; 230-a hoisting member; 231-hoisting holes; 240-a retaining member; 241-projection.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the application is usually placed in when used, and are used only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiment of the application provides a system for stick and thread cold shears changes cold shears cutter, its subassembly and overhead traveling crane that are used for stick and thread cold shears to change cold shears cutter.

Referring to fig. 1, the cold shears 10 includes a box 100 and a cold shears blade 110, the box 100 has a limiting portion 101, one end of the cold shears blade 110 away from the cutting edge is detachably fixed on the limiting portion 101, and the cutting edge of the cold shears blade 110 extends out of the box 100, so as to cut the bars in the actual using process, wherein the thickness of the limiting portion 101 is greater than that of the cold shears blade 110, and the thickness of the limiting portion 101 gradually increases from the side close to the cold shears blade 110 to the side far from the cold shears blade 110, for example, the cross section in the thickness direction is substantially trapezoidal. The specific connection and arrangement of the knife box 100 and the cold shear blade 110 can refer to the related art.

The cold shearing machine (not shown) for the rod and line has a cold shearing tool 10 mounting part, the cold shearing tool 10 mounting part comprises a guide groove which is matched with the limiting part 101 of the tool box 100 and is used for accommodating the limiting part 101, one end of the guide groove along the length direction of the guide groove is provided with an inlet and an outlet for inserting or taking out the tool box 100, and the lower end of the guide groove is provided with an opening for extending out a cold shearing blade 110.

Referring to fig. 1-5, the assembly includes a support wheel set and a spreader 210.

Referring to fig. 2, the supporting wheel set includes two supporting wheels 201. The two supporting wheels 201 are used for being installed at the inlet and outlet of the rod line cold shearing machine, the two supporting wheels 201 are arranged at intervals to form a channel for the cold shearing tool 10 to penetrate through, and the channel is communicated with the inlet and outlet, so that the cold shearing tool 10 can enter the inlet and outlet from the channel and then is installed in the guide groove.

Because cold shears 10 size is big and weight is big, and need keep higher levelness during the installation, consequently every bearing wheel 201 is used for bearing cold shears 10 and with cold shears 10 rolling contact, bearing through bearing wheel 201, cold shears 10 keep balance and higher levelness when guaranteeing the installation, prevent the landing in order to cause the potential safety hazard, and through rolling contact's mode, be convenient for install cold shears 10, also can reduce the frictional force between the two simultaneously, the stationarity when guaranteeing the installation, and because of frictional force when can avoiding the installation, rock the damage rod line cold shears such as.

The position relationship between the supporting wheels 201 and the cold shears 10 is shown in fig. 2 or fig. 3, in the schematic diagram of one position relationship between the cold shears 10 and the supporting wheels 201 shown in fig. 2, the two supporting wheels 201 can respectively make rolling contact with the two side surfaces of the limiting portion 101 in the thickness direction, and in the schematic diagram of the other position relationship between the cold shears 10 and the supporting wheels 201 shown in fig. 3, the two supporting wheels 201 can respectively make rolling contact with the bottom of the limiting portion 101, so as to support the cold shears 10. In the above fig. 2 and fig. 3, the rotating shafts of the supporting wheels 201 are both indicated by dashed lines, that is, two supporting wheels 201 are respectively disposed in the thickness direction of the doorway, and along the length direction of the cold shears 10, each supporting wheel 201 is in rolling contact with the cold shears 10 and bears the cold shears 10, and those skilled in the art can adopt the manner shown in fig. 2 or fig. 3 according to actual requirements.

Referring to fig. 1, 4 and 5, the hanger 210 includes a body 220, a locking member 240 and a lifting member 230.

The body 220 includes two clamping plates 227 and two claws 221.

Wherein the two claws 221 are arranged oppositely and in parallel, and a certain gap is left between the two claws 221.

Each claw 221 includes a horizontal plate 222 and two inner fasteners 223 respectively disposed at two ends of the horizontal plate 222, wherein one side of each inner fastener 223 opposite to the horizontal plate 222 gradually shrinks towards the side away from the horizontal plate 222 from being close to the horizontal plate 222, that is, the two inner fasteners 223 and the horizontal plate 222 form an inner-fastening limiting groove 225, and the limiting groove 225 is used for clamping the limiting portion 101.

Optionally, the limiting groove 225 includes a first groove portion 2251 and a second groove portion 2253 that are communicated with each other, the first groove portion 2251 is located on a side of the second groove portion 2253 away from the transverse plate 222, and a groove wall of the first groove portion 2251 is attached to the limiting portion 101, that is, the first groove portion 2251 has the same shape as the limiting portion 101 and matches with the limiting portion 101, and the groove wall of the first groove portion 2251 can limit the limiting portion 101.

The cross-sectional dimension of the second groove 2253 is larger than the cross-sectional dimension of the stopper 101, so that when at least part of the stopper 101 is located in the second groove 2253, a gap of 5-10mm is formed between the inner snap 223 and the stopper 101, that is, when at least part of the stopper 101 is located in the second groove 2253, the stopper 101 can be inserted into the stopper groove 225 without contact.

Wherein, the connection mode of horizontal plate 222 and interior fastener 223 has a variety, for example horizontal plate 222 and interior fastener 223 can be connected by bending to adjust the contained angle between interior fastener 223 and horizontal plate 222 according to actual demand, or horizontal plate 222 and interior fastener 223 pass through modes such as welding fixed connection, and based on the weight of cold shears cutter 10 is big, consequently, in this embodiment, interior fastener 223 and horizontal plate 222 integrated into one piece, stability between the two is good.

Wherein, each clamping plate 227 connects two inner fasteners 223 opposite to the two claws 221, which can ensure the integrity of the two claws 221.

In order to ensure the stability of the clamping, optionally, each inner fastening member 223 has a mounting surface facing the limiting groove 225, and the clamping plate 227 is connected with the mounting surface, that is, the clamping plate 227 protrudes out of the mounting surface of the inner fastening member 223, so that during the process of replacing the cold shears 10, the inner surface of the clamping plate 227 departing from the mounting surface can clamp the cold shears 10 in a surface contact manner, and the stability of the installation is ensured.

Because the length of the cold shears 10 is relatively large and heavy, in order to ensure that the cold shears 10 can meet the requirement of high level during hoisting on the premise of installing a hanger 210, optionally, the distance between the two claws 221 is 0.1-0.25 times the length of the cold shears 10, for example, the distance between the two claws 221 is 0.1 times, 0.15 times, 0.2 times or 0.25 times the length of the cold shears 10, and through the limitation of the specific distance, when the hanger 210 is sleeved at 1/2 of the length of the cold shears 10 during installation, the two ends of the cold shears 10 can be kept balanced and are not easy to shake.

The lifting piece 230 is connected with the transverse plates 222 of the two claws 221 respectively, the lifting piece 230 is located on one side of the transverse plate 222 departing from the limit groove 225, and the lifting piece 230 is provided with a lifting hole 231 for installing a lifting rope. Through the arrangement, the contact between the lifting rope and the cold shear cutter 10 in the actual installation process is avoided, so that the cold shear blade 110 does not need to be covered during the actual installation process, the replacement process is reduced, the replacement time is saved, and the replacement efficiency is improved.

The orthographic projection of the hoisting piece 230 is located on an extension line of a gravity center connecting line of the two claws 221, so that the gravity center of the hoisting tool 210 is centered, and horizontal hoisting is facilitated.

Optionally, the lifting member 230 is a triangular plate, and the triangular plate has good installation stability.

Optionally, the centre of gravity of the sling 230 and the centre of gravity of the two claws 221 are in the shape of an isosceles triangle, wherein the line between the centre of gravity of each claw 221 and the centre of gravity of the sling forms the waist line of the isosceles triangle. The arrangement can ensure that the lifting appliance 210 keeps stable along two ends of the gravity center of the lifting appliance, and is convenient for lifting on the premise of keeping high levelness subsequently.

How to satisfy the safety of hoisting for the very heavy cold shears 10 is also a technical problem that needs to be solved.

Therefore, in order to ensure safety in lifting, the thickness of the lifting member 230 may be 18-22 mm.

Optionally, the lifting piece 230 is welded with the transverse plate, and the welding area between the lifting piece 230 and the transverse plate is 50-60mm²And the enough contact area between the lifting piece 230 and the transverse plate is ensured, the connection stability of the lifting piece 230 and the transverse plate is ensured, and safety accidents are avoided.

Optionally, the hoisting piece 230 and the transverse plate are welded in a full welding mode, so that the connection position is more stable, and the hoisting safety is improved.

The locking member 240 is in threaded connection with the transverse plate 222 and is used for locking or unlocking the cold shears 10 mounted in the limiting groove 225 with the body 220, so as to prevent safety accidents caused by the fact that the cold shears 10 slide off from the limiting groove 225.

Wherein, retaining member 240's quantity is two, and two locking screw are along hoisting the focus symmetrical arrangement of piece 230, and every retaining member 240 is located the extension line of the focus line of two claws 221, through the aforesaid setting, can guarantee that hoist 210 focus is placed in the middle, makes cold shears 10 keep steadily when being convenient for follow-up installation, easily reaches the levelness requirement of hoist and mount.

Wherein each retaining member 240 is threadably engaged with the corresponding cross plate 222 for ease of operation.

Optionally, the locking member 240 is a locking screw, which is easy to obtain, wherein the axis of the locking screw is perpendicular to the transverse plate 222, and the axial extension line of the locking screw intersects with the extension line of the inner buckle 223.

In order to achieve the locking effect and prevent the cold shears 10 from slipping, so as to avoid safety accidents, the diameter of the locking screw is greater than or equal to 12mm, such as 13 mm, 14 mm, 16mm, 18 mm, and the like, so that the contact area between the locking screw and the cold shears 10 is large, and the cold shears 10 can be better locked.

In this embodiment, the diameter of locking screw is 16mm, and locking effect is good and convenient to use.

In some optional examples, as shown in fig. 4, each horizontal plate 222 is provided with a protrusion 241 protruding from a side of the horizontal plate 222 away from the other horizontal plate 222, the protrusion 241 is provided with a screw hole (not shown) penetrating through the protrusion 241 in the width direction, a nut is integrally formed with the horizontal plate 222, the two screw holes are symmetrically arranged along the gravity center of the sling 230, each screw hole is located on an extension line of the connection line of the gravity centers of the two claws 221, and the locking member 240 is screwed into the screw hole.

In fig. 4, the center of the cold shears 10 along its length, i.e., the theoretical length 1/2, is shown in dashed lines.

The number of spreaders 210 may be one or more, e.g. two, three, etc. In this embodiment, the number of the spreaders 210 is two, and for convenience of description, the spreaders are respectively referred to as a first spreader and a second spreader.

The present application also provides a method of replacing a cold shears 10 for a rod and wire cold shears implemented using the system for replacing a cold shears 10 for a rod and wire cold shears described above.

Before the method for replacing the cold shears 10 is implemented, the bearing wheel set is installed at the entrance in advance, a channel communicated with the entrance is formed between the two bearing wheels 201 of the bearing wheel set, and each bearing wheel 201 is used for bearing the cold shears 10 and is in rolling contact with the cold shears 10. Specifically, referring to fig. 1, 4 and 5, the method for replacing the cold shearing tool 10 of the bar wire cold shearing machine includes:

and S1, taking out the cold shearing tool 10 to be replaced in the bar wire cold shearing machine.

Specifically, the cold shears 10 to be replaced in the cold shears for rod and wire are pushed out through the inlet, the outlet and the channel in sequence until 1/2 lengths of the cold shears 10 are exposed. At this moment, due to the arrangement of the bearing wheel 201 group, the cold shearing tool 10 can be conveniently pushed out, and the stability of the process of pushing out the cold shearing tool 10 is ensured, meanwhile, the other half of the cold shearing tool 10 is positioned in the rod line cold shearing machine, and the extending part is supported by the bearing wheel 201 group, so that the cold shearing tool 10 can keep better stability and cannot slide and separate from the rod line cold shearing machine.

When the length 1/2 of the cold shears 10 is exposed after being pushed out, the locking member 240 of the first hanger 210 is unlocked, the first hanger is lifted by the crane, the first hanger is slightly moved downwards, the first hanger is sleeved into the exposed end of the cold shears 10 along the length direction of the cold shears 10, and the limiting part 101 is partially located in the second groove 2253 of the first hanger, so that the first hanger is not in contact with the limiting part.

Under the premise of keeping the first hanger and the limiting part to be in non-contact, the first hanger is moved to 1/2 length of the cold shears 10 along the length direction of the cold shears 10, then the first hanger is moved upwards to make the limiting part 101 contact with the clamping plate 227 of the first hanger (namely, the limiting part 101 contacts with the groove wall of the first groove 2251), the locking member 240 is locked to limit the relative movement of the cold shears 10 and the first hanger, namely, a non-contact sleeving manner is adopted, so as to avoid influencing the stability of the cold shears 10 in the sleeving process, the first hanger is moved upwards to make the cold shears 10 contact with the clamping plate 227 and is matched with the locking member 240, so as to ensure that the first hanger is stably installed on the cold shears 10, meanwhile, the cold shears 10 does not need to be moved in the installation process, namely, under the premise that the cold shears 10 keeps a better levelness, the first hanger is sleeved on the cold shears 10 in a non-contact manner, the replacement difficulty is reduced.

And then continuously pushing out the rest cold shears 10, and then hanging the cold shears 10 locked by the first lifting appliance away from the bar line cold shears.

And S2, loading a new cold shearing cutter 10 into the cold shearing machine for the rod and the wire.

Specifically, the locking member 240 of the second hanger is unlocked, the second hanger is sleeved into the 1/2-length position of the cold shear 10 along the length direction of the new cold shear 10 without contact, then the second hanger is moved upwards to make the cold shear 10 contact with the clamping plate 227, the locking member 240 is locked to limit the relative movement of the cold shear 10 and the second hanger, at this time, the second hanger is lifted by using a crane, the cold shear 10 locked by the second hanger is sequentially loaded into the rod wire cold shear through the channel and the entrance and exit, and when the cold shear 10 is loaded to the length 1/2 of the cold shear, after the locking member 240 is unlocked, the second hanger is moved downwards to make the limiting part not contact with the second hanger, and the cold shear 10 is all pushed into the rod wire cold shear.

Due to practical operation errors, the 1/2 length of the cold shears 10 is not exactly the center of the cold shears 10 along its length direction, but refers to that the cold shears 10 may be shifted from the center to both sides by a certain distance along its length direction, specifically, for example, the shift distance is less than or equal to 5 cm.

It should be noted that, regardless of the first spreader or the second spreader, the spreader is moved to 1/2 lengths of the cold shears 10, and it is desirable to maintain the two sides of the spreader as substantially symmetrical along 1/2 lengths of the cold shears 10.

In summary, the assembly, the system and the method for replacing the cold shearing tool of the cold shearing machine for the rod and wire provided by the embodiment of the application can meet the requirement of high levelness during hoisting on the premise that each cold shearing tool is only provided with one hoisting tool, reduce the replacement difficulty, simplify the hoisting process, improve the working efficiency and reduce the safety risk of falling of hoisted objects.

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

Claims

1. A component for replacing a cold shearing tool of a cold shearing machine for rod and line is characterized in that the component comprises a bearing wheel set and a lifting appliance, wherein the cold shearing tool of the cold shearing machine for rod and line comprises an installation part provided with an inlet and an outlet;

the supporting wheel set comprises two supporting wheels, the two supporting wheels are used for being installed at the entrance and the exit, the two supporting wheels are arranged at intervals to form a channel for the cold shearing tool to penetrate through, the channel is communicated with the entrance and the exit, and each supporting wheel is used for supporting the cold shearing tool and is in rolling contact with the cold shearing tool;

the lifting appliance comprises a body, a locking piece and a lifting piece;

the body comprises two clamping plates and two claws which are arranged oppositely and in parallel, the distance between the two claws is 0.1-0.25 times of the length of the cold shearing tool, each claw comprises a transverse plate and two inner fasteners which are respectively arranged at two ends of the transverse plate, one sides of the two inner fasteners which are opposite are gradually contracted in opposite directions from the side close to the transverse plate to the side far away from the transverse plate, the two inner fasteners and the transverse plate jointly form a limiting groove for clamping the limiting part, each clamping plate is connected with the two inner fasteners which are opposite to the two claws, each inner fastener is provided with an installation surface facing the limiting groove, and the clamping plates are connected with the installation surfaces;

the hoisting piece is connected with the transverse plates of the two claws respectively, the hoisting piece is positioned on one side of the transverse plate, which is far away from the limiting groove, the hoisting piece is provided with a hoisting hole for installing a hoisting rope, the gravity center of the hoisting piece and the gravity centers of the two claws form an isosceles triangle, and a connecting line between the gravity centers of the claws and the gravity center of the hoisting piece forms a waist line of the isosceles triangle;

the quantity of retaining member is two, and two retaining members are followed the focus symmetrical arrangement of hoist and mount piece, every retaining member is located on the extension line of the focus line of two paws, every retaining member with diaphragm threaded connection for will install in the cold shears cutter of spacing inslot with body locking or unblock.

2. The assembly of claim 1, wherein said sling is a triangular plate, said sling having a thickness of 18-22 mm.

3. The assembly of claim 1, wherein said sling is welded to said cross plate and the area of the weld between said sling and said cross plate is 50-60mm²。

4. The assembly of claim 1, wherein said sling is fully welded to said cross plate.

5. The assembly of claim 1, wherein the retaining member is a retaining screw having a diameter of greater than or equal to 12 mm.

6. The assembly of claim 1, wherein the limiting groove comprises a first groove portion and a second groove portion which are communicated with each other, the first groove portion is located on one side, away from the transverse plate, of the second groove portion, and a groove wall of the first groove portion is attached to the limiting portion;

the cross-sectional dimension of the second groove part is larger than that of the first groove part, so that when at least part of the limiting part is positioned in the second groove part, a gap of 5-10mm is formed between the groove wall of the second groove part and the limiting part.

7. A system for changing cold shears cutters for a cold shears for rod and wire machines, comprising:

the assembly of any one of claims 1 to 6, wherein the number of spreaders in the assembly is two, the two spreaders being respectively a first spreader and a second spreader;

the overhead traveling crane is connected with the first lifting appliance and the second lifting appliance in a detachable mode through the lifting rope.

8. A method for replacing a cold shearing tool of a cold shearing machine for a rod thread implemented by using the system of claim 7, wherein before replacing the cold shearing tool, the supporting wheel set is mounted at an entrance in advance, a channel communicated with the entrance is formed between two supporting wheels of the supporting wheel set, and each supporting wheel is used for supporting the cold shearing tool and is in rolling contact with the cold shearing tool;

the method for replacing the cold shearing tool of the bar and wire cold shearing machine comprises the following steps:

s1, pushing out the cold shears to be replaced in the cold shears of the rod and line sequentially through the access and the channel until the length of 1/2 of the cold shears is exposed, unlocking a locking piece of the first lifting appliance, lifting the first lifting appliance by using the crown block, sleeving the first lifting appliance into the pushed end of the cold shearing tool along the length direction of the cold shearing tool, and moving the first lifting appliance to 1/2 lengths of the cold shearing tool on the premise of keeping the first lifting appliance and the limiting part in a non-contact state, then the first lifting appliance is moved upwards to enable the limiting part to be attached to a clamping plate of the first lifting appliance, the locking part is locked to limit the relative movement of the cold shearing tool and the first lifting appliance, and after the rest cold shearing tools are pushed out continuously, the cold shearing tool locked by the first lifting appliance is lifted away from the bar line cold shearing machine;

s2, unlocking the locking piece of the second lifting appliance, sleeving the second lifting appliance into a 1/2 length position of a new cold shearing tool in a non-contact mode along the length direction of the cold shearing tool, moving the second lifting appliance upwards to enable the limiting portion to be attached to the clamping plate of the second lifting appliance, locking the corresponding locking piece to limit the relative movement of the cold shearing tool and the second lifting appliance, lifting the second lifting appliance by using the crown block, sequentially loading the cold shearing tool locked by the second lifting appliance into the rod wire cold shearing machine through the channel and the access, and moving the second lifting appliance downwards to enable the limiting portion to be free of contact with the second lifting appliance after unlocking the corresponding locking piece when the cold shearing tool is loaded into 1/2 length of the cold shearing tool, and then pushing all the cold shearing tools into the rod wire cold shearing machine.