CN217942528U

CN217942528U - Cold shearing device

Info

Publication number: CN217942528U
Application number: CN202222102744.7U
Authority: CN
Inventors: 孙力
Original assignee: Danieli Metallurgy Equipment China Co ltd
Current assignee: Danieli Metallurgy Equipment China Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-12-02
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a cold shearing device, which comprises a box body, a crankshaft, at least two shaft sleeves sleeved on the crankshaft, and bearing assemblies oppositely arranged on two sides of the box body along the extension direction of the crankshaft, wherein each bearing assembly correspondingly locks one shaft sleeve, so that the crankshaft is fixed in the box body; the bearing assembly is of a split structure and comprises a first bearing seat fixed at the top of the box body, a second bearing seat arranged opposite to the first bearing seat in the vertical direction, and a fastening assembly used for connecting the first bearing seat and the second bearing seat; the fastening assembly comprises a double-end stud which is simultaneously inserted into the first bearing seat and the second bearing seat, the first end of the double-end stud is connected with the pin shaft in the first bearing seat, and the second end of the double-end stud locks the second bearing seat and the first bearing seat through a locking nut; and a pin hole matched with the pin shaft is formed in the first bearing seat, so that the pin shaft and the first bearing seat are detachably connected. The cold shearing device is simple in structure and convenient to install, and can effectively improve the structural strength of the device and reduce the maintenance cost.

Description

Cold shearing device

Technical Field

The utility model relates to a cold shears technical field especially relates to a cold shears device.

Background

Fig. 1 is a schematic structural diagram of a conventional cold shears device. In the structure of the existing cold shearing device, one end of the operation side of the crankshaft 2 is supported by a door plate 3, and the other end of the operation side of the crankshaft passes through the box body 1 and then is in taper interference fit with the gear 4. The crankshaft 2 is also sleeved with a shaft sleeve and provided with a tool apron 6 and the like. When the cold shearing device is applied to shearing of special steel, the problems of box body cracking, shear base cracking, door plate screw cracking, copper sleeve locking and the like easily occur due to insufficient structural strength of the device. When involving maintenance such as copper sheathing, blade holder, must demolish the door plant earlier, demolish the gear, just can disassemble the bent axle in the box, it is inconvenient to maintain, and cost of maintenance is high.

Disclosure of Invention

In order to overcome the defect among the prior art, the embodiment of the utility model provides a cold shear device, this cold shear device simple structure, simple to operate can effectively improve device structural strength, reduces cost of maintenance.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a cold shearing device comprises a box body, a crankshaft arranged in the box body, at least two shaft sleeves sleeved on the crankshaft, and bearing assemblies oppositely arranged on two sides of the box body along the extension direction of the crankshaft, wherein each bearing assembly is correspondingly locked with one shaft sleeve, so that the crankshaft is fixed in the box body; the bearing assembly is of a split structure and comprises a first bearing seat fixed at the top of the box body, a second bearing seat arranged opposite to the first bearing seat along the vertical direction, and a fastening assembly used for connecting the first bearing seat and the second bearing seat; the fastening assembly comprises a stud which is inserted into the first bearing seat and the second bearing seat simultaneously, a first end of the stud is connected with the pin shaft in the first bearing seat, and a second end of the stud locks the second bearing seat with the first bearing seat through a locking nut; and a pin hole matched with the pin shaft is arranged in the first bearing seat, so that the pin shaft and the first bearing seat form detachable connection.

Preferably, the pin shaft has a threaded hole therein, and the first end of the stud is in threaded connection with the pin shaft.

Preferably, the pin hole is a hole horizontally extending in the first bearing seat, and an opening for inserting the pin shaft is formed in an outer side surface of the first bearing seat.

Preferably, each bearing assembly comprises at least two fastening assemblies arranged at two ends along the extending direction of the bearing assembly.

Preferably, the bearing assembly further comprises a first locating formation located between the bearing assembly and the housing.

Further preferably, the first positioning structure is a first positioning pin inserted into the box body and the bearing assembly in a horizontal direction.

Preferably, the bearing assembly further comprises a second locating formation located between the first bearing seat and the second bearing seat.

Further preferably, the second positioning structure is a second positioning pin inserted into the first bearing seat and the second bearing seat along the vertical direction.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model discloses well along the extending direction of bent axle, set up bearing assembly relatively on the box, compare with original door plant structure, improved the holistic intensity of device to avoid the box fracture, the scissors seat fracture, door plant screw fracture scheduling problem reduces the maintenance number of times, reduces cost of maintenance.

2. The bearing assembly comprises a first bearing seat, a second bearing seat and a fastening assembly for connecting the first bearing seat and the second bearing seat; the fastening assembly comprises a stud inserted into the first bearing seat and the second bearing seat, a pin shaft connected with the first end of the stud and located in the first bearing seat, and a locking nut connected with the second end of the stud and used for locking the first bearing seat and the second bearing seat. The stud is connected with the pin shaft in the first bearing seat, so that the stud is prevented from being broken in the first bearing seat, the first bearing seat is prevented from being integrally replaced, and the maintenance cost is reduced.

3. The pin hole is arranged to be a hole extending horizontally in the first bearing seat, and an opening is formed in the outer side face of the first bearing seat, so that the pin shaft and the first bearing seat can be assembled conveniently.

4. At least two fastening assemblies are arranged in each bearing assembly along the extending direction of the bearing seat, so that the strength and the stability of the device are improved.

5. Through set up location structure between bearing assembly and box to and set up location structure between first bearing frame and second bearing frame, the equipment between each part of the cold shears device of being convenient for.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

FIG. 1 is a schematic diagram of a prior art cold shearing apparatus;

FIG. 2 is a schematic exploded view of a cold shearing apparatus according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a cold shearing apparatus in an embodiment of the present application;

fig. 4 is a schematic view of a fastening assembly in an embodiment of the present application.

Reference numerals of the above figures: 1. a box body; 2. a crankshaft; 3. a door panel; 4. a gear; 5. a shaft sleeve; 6. a tool apron; 71. a first bearing housing; 72. a second bearing housing; 73. a fastening assembly; 731. a stud; 732. a pin shaft; 733. locking the nut; 8. a pin hole; 9. a first positioning pin; 10. a second positioning pin; 11. a cover plate; 12. gear case lid.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 2 to 4, the cold shearing apparatus includes a case 1, a crankshaft 2 disposed in the case 1, at least two shaft sleeves 5 sleeved on the crankshaft 2, and bearing assemblies disposed on two sides of the case 1 along an extending direction of the crankshaft 2, wherein each bearing assembly is correspondingly locked to one of the shaft sleeves 5, so as to fix the crankshaft 2 in the case 1.

The bearing assembly is of a split structure and comprises a first bearing seat 71 fixed at the top of the box body 1, a second bearing seat 72 arranged opposite to the first bearing seat 71 in the vertical direction, and a fastening assembly 73 used for connecting the first bearing seat 71 and the second bearing seat 72.

Through set up bearing assembly relatively in the both sides at box 1, utilize bearing assembly fixed crankshaft 2, compare with 3 structures of original door plant, improved the holistic intensity of device to avoid box 1 fracture, scissors seat 6 fracture, 3 screw fracture scheduling problems of door plant reduce the maintenance number of times, reduce cost of maintenance.

The bearing assembly comprises a first bearing seat 71 and a second bearing seat 72 which are oppositely arranged along the vertical direction, and the structure can be arranged so that when the cold shearing device needs to be maintained, the second bearing seat 72 can be detached from the first bearing seat 71 to enable the crankshaft 2 to be in an unlocked state, so that the crankshaft 2, the shaft sleeve 5, the tool apron 6, the gear 4 and the like which are arranged on the crankshaft 2 can be lifted out of the box body 1 as a whole, and the maintenance of the components is facilitated. The maintenance mode can avoid the maintenance difficulty brought by the overall weight of the field and the device.

The fastening assembly 73 includes a stud 731 inserted into the first bearing seat 71 and the second bearing seat 72 simultaneously, a first end of the stud 731 is connected to a pin 732 in the first bearing seat 71, and a second end of the stud 731 locks the second bearing seat 72 to the first bearing seat 71 through a locking nut 733. A pin hole 8 matched with the pin 732 is formed in the first bearing seat 71, so that the pin 732 and the first bearing seat 71 form a detachable connection. The first bearing seat 71 and the second bearing seat 72 are connected through the fastening assembly 73, so that the structure is simple and the connection is convenient. The first end of the stud 731 in the fastening assembly 73 is connected to the pin 732 in the first bearing seat 71, and the pin 732 passes through the pin hole 8 on the first bearing seat 71 to be detachably connected to the first bearing seat 71, so that the stud 731 is prevented from being broken in the first bearing seat 71, and compared with the case where the stud 731 is directly connected to the first bearing seat 71, the whole replacement of the first bearing seat 71 is avoided, the maintenance cost is reduced, the maintenance is convenient, and the maintenance efficiency is improved. Preferably, the locking nut 733 may be detached and attached by a heating rod. Specifically, during assembly, the stud 731 is heated by the heating rod, when the stud 731 is measured to be heated and extended to a preset length, the nut 733 is locked, and after the stud 731 is cooled, the first bearing seat 71 and the second bearing seat 72 can be locked.

In a preferred embodiment, the pin 732 has a threaded hole therein, and the first end of the stud 731 is threadedly coupled to the pin 732, which is easy to machine and connect. The stud 731 may have a larger diameter, so as to further improve the strength of the device and ensure the locking force. Referring to fig. 2, each of the bearing assemblies includes at least two fastening assemblies 73 arranged at both ends along the extending direction of the bearing housing, so as to improve the stability of the device.

In order to facilitate the assembly of the pin 732, the pin hole 8 is a hole extending horizontally in the first bearing seat 71, and an opening for inserting the pin 732 is formed in an outer side surface of the first bearing seat 71.

Further preferably, the bearing assembly further comprises a first positioning structure between the bearing assembly and the housing 1. The first positioning structure is a first positioning pin 9 inserted into the box body 1 and the bearing assembly along the horizontal direction. The bearing assembly further includes a second locating feature located between the first bearing seat 71 and the second bearing seat 72. The second positioning structure is a second positioning pin 10 inserted in the first bearing seat 71 and the second bearing seat 72 along the vertical direction.

In an alternative embodiment, the upright posts of the box body 1 are welded by a thick plate of 200mm, so that the strength of the box body 1 is further improved. The housing 1 further comprises a cover plate 11 disposed above the crankshaft 2, the cover plate 11 being bolted to the two opposite bearing assemblies to enclose the cold shearing device. The number and the size of the foundation bolts are increased on the box body 1, so that the whole cold shear shock resistance of the device is stronger.

One end of the crankshaft 2 is provided with a gear 4, the gear 4 and the crankshaft 2 are in interference fit through conical surfaces and are installed into a whole, and when maintenance is needed, the gear 4 and the crankshaft 2 can be lifted away from the box body 1 together. Above the gear 4 there is a gearbox cover 12, which is arranged at a predetermined distance from the bearing assembly, to avoid dry oil for bearing lubrication from entering the thin oil for gearbox lubrication after the lip seal has been damaged.

The principle and the implementation mode of the utility model are explained by applying the specific embodiment, and the explanation of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be changes in the specific embodiments and the application range, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A cold shearing device is characterized by comprising a box body, a crankshaft arranged in the box body, at least two shaft sleeves sleeved on the crankshaft, and bearing assemblies oppositely arranged on two sides of the box body along the extension direction of the crankshaft, wherein each bearing assembly correspondingly locks one shaft sleeve, so that the crankshaft is fixed in the box body; the bearing assembly is of a split structure and comprises a first bearing seat fixed at the top of the box body, a second bearing seat arranged opposite to the first bearing seat along the vertical direction, and a fastening assembly used for connecting the first bearing seat and the second bearing seat; the fastening assembly comprises a stud bolt which is inserted into the first bearing seat and the second bearing seat simultaneously, the first end of the stud bolt is connected with the pin shaft in the first bearing seat, and the second end of the stud bolt locks the second bearing seat and the first bearing seat through a locking nut; and a pin hole matched with the pin shaft is formed in the first bearing seat, so that the pin shaft and the first bearing seat form detachable connection.

2. A cold shearing device as defined in claim 1, wherein: the pin shaft is internally provided with a threaded hole, and the first end of the stud is in threaded connection with the pin shaft.

3. A cold shearing device as defined in claim 1, wherein: the pin hole is a hole horizontally extending in the first bearing seat, and an opening for inserting the pin shaft is formed in the outer side surface of the first bearing seat.

4. A cold shearing device as defined in claim 1, wherein: each bearing assembly at least comprises two fastening assemblies which are arranged at two ends along the extending direction of the bearing seat.

5. A cold shearing device as defined in claim 1, wherein: the bearing assembly further comprises a first locating structure located between the bearing assembly and the box body.

6. A cold shears apparatus according to claim 5, wherein: the first positioning structure is a first positioning pin inserted into the box body and the bearing assembly along the horizontal direction.

7. A cold shears apparatus according to claim 1, wherein: the bearing assembly also includes a second locating feature positioned between the first bearing seat and the second bearing seat.

8. A cold shears apparatus according to claim 7, wherein: the second positioning structure is a second positioning pin inserted into the first bearing seat and the second bearing seat along the vertical direction.