CN214142423U

CN214142423U - Lever type eccentric locking device

Info

Publication number: CN214142423U
Application number: CN202023156309.XU
Authority: CN
Inventors: 杨立江; 王岗; 张雯
Original assignee: Sinosteel Xian Machinery Co Ltd
Current assignee: Sinosteel Xian Machinery Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-07
Anticipated expiration: 2030-12-24

Abstract

The application discloses eccentric locking device of lever relates to blast furnace bell-less furnace top equipment technical field, solves the epaxial eccentric locking device of tilting and passes through the gear train locking, and the gear engagement has the tooth side clearance, in the positive and negative rotation motion process, can not compress tightly the problem of distribution chute completely. The embodiment of the utility model provides an including eccentric shaft, L shape connecting rod and screw rod. The eccentric shaft is arranged in the tilting shaft, the side surface of the eccentric shaft is also connected with an L-shaped connecting rod, and one end, far away from the eccentric shaft, of the L-shaped connecting rod is movably connected with a screw rod. The other end of the screw rod is connected with a first fixing piece, and the screw rod is fixed in the tilting shaft through the first fixing piece and can rotate around the first fixing piece. The embodiment of the utility model provides a do not have gear engagement, simple structure, simple to operate, through the adjusting screw, rotate the eccentric shaft, adjust the eccentric volume, realize compressing tightly the cloth chute.

Description

Lever type eccentric locking device

Technical Field

The application relates to the technical field of blast furnace bell-less furnace top equipment, in particular to a lever type eccentric locking device.

Background

The blast furnace distributing chute is installed on the tilting shaft of the tilting speed reducer, and the eccentric locking device on the tilting shaft is used for locking and fixing the distributing chute hung on the tilting shaft so as to prevent the distributing chute from moving relative to the tilting shaft during rotation and tilting. The cloth chute is hung on the tilting shaft at present during installation, then the eccentric shaft of the eccentric shaft locking device on the tilting shaft is rotated, the eccentric amount of the end part of the eccentric shaft is adjusted, the cloth chute is compressed, the eccentric locking device on the tilting shaft is fixed after adjustment, and the eccentric locking device mainly prevents the cloth chute from shaking during rotation and tilting, so that the cloth chute operates stably, and the cloth chute is prevented from shaking to impact on a tilting speed reducer gear train.

At present, similar products are manufactured at home and abroad, and the products are named as a chute locking device, a tilting shaft locking device and an eccentric shaft locking device. The eccentric locking device on the tilting shaft is complex in structure, is tightly meshed through the multi-stage gears during locking, and is inconvenient to install and replace. The eccentric locking device on the tilting shaft is locked through a gear train, a gear is meshed with a gear side gap, and the material distribution chute cannot be completely pressed in the positive and negative rotation movement process.

Disclosure of Invention

The embodiment of the application solves the problems that an eccentric locking device on a tilting shaft in the prior art is complex in structure, is meshed and pressed through a plurality of gears during locking, and is inconvenient to install and replace by providing the lever-type eccentric locking device; the eccentric locking device on the tilting shaft is locked through a gear train, a gear is meshed with a tooth side gap, the problem that a cloth chute cannot be completely compressed in the forward and reverse rotation movement process is solved.

An embodiment of the utility model provides a lever eccentric locking device, including eccentric shaft, L shape connecting rod and screw rod.

The eccentric shaft is arranged in the tilting shaft, the side surface of the eccentric shaft is also connected with an L-shaped connecting rod, and one end, far away from the eccentric shaft, of the L-shaped connecting rod is movably connected with a screw rod.

The other end of the screw rod is connected with a first fixing piece, and the screw rod is fixed in the tilting shaft through the first fixing piece and can rotate around the first fixing piece.

In one possible implementation manner, the first fixing member includes a pin shaft, and the screw is fixed in the tilting shaft through the pin shaft.

In a possible implementation manner, the screw rod is provided with a connecting block at the end position connected with the pin shaft, a first connecting hole is formed inside the connecting block, and the pin shaft penetrates through the first connecting hole in the connecting block and is connected with the tilting shaft.

In a possible implementation manner, a U-shaped groove is formed at the joint of the L-shaped connecting rod and the screw rod, two side walls of the U-shaped groove are connected through a cross shaft, and a second connecting hole for the screw rod to pass through is formed in the middle of the cross shaft.

In a possible implementation manner, nuts are further arranged on two sides of the joint of the screw and the U-shaped groove, and the nuts are used for locking two ends of the screw.

In a possible implementation manner, one end of the eccentric shaft exposed out of the tilting shaft is fixed in the tilting shaft through a second fixing piece.

In one possible implementation, the second fixing member includes a pressing plate and a bolt; the pressing plate is of a bent structure, one end of the pressing plate is fixed at one end, exposed out of the eccentric shaft, of the tilting shaft, and the other end of the pressing plate is fixed on the tilting shaft through the bolt.

In a possible realization, the L-shaped connecting rod is welded at the lateral end of the eccentric shaft.

In a possible implementation manner, a distribution chute is hung on the tilting shaft.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model provides a through having adopted eccentric shaft and L shape connecting rod to connect, the eccentric shaft is fixed in the internal portion of tilting shaft, L shape connecting rod swing joint has the screw rod, the screw rod is fixed in the tilting shaft through first mounting, compress tightly through multistage gear engagement when effectively having solved locking, it is inconvenient to install and change, through gear train locking, gear engagement has the tooth side clearance, in the positive and negative rotation motion process, can not compress tightly the problem of cloth chute completely, and then realized not having gear engagement, moreover, the steam generator is simple in structure, high durability and convenient installation, through the adjusting screw rod, rotate the eccentric shaft, the adjustment eccentric value, the realization compresses tightly the cloth chute.

Drawings

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

Fig. 1 is a first structural schematic diagram of a lever-type eccentric locking device provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the direction A in FIG. 1 according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of the direction B-B in FIG. 2 according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a lever-type eccentric locking device provided by the embodiment of the application.

Reference numerals: 1-tilting axis; 2-a screw; 3-a nut; 4-an eccentric shaft; 5-a pin shaft; 6-pressing a plate; 7-bolt; 8-L-shaped connecting rod.

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 some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically 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 embodiments of the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, an embodiment of the present invention provides a lever type eccentric locking device, which includes an eccentric shaft 4, an L-shaped connecting rod 8 and a screw rod 2; the eccentric shaft 4 is arranged in the tilting shaft 1, the side surface of the eccentric shaft 4 is also connected with an L-shaped connecting rod 8, and one end of the L-shaped connecting rod 8, which is far away from the eccentric shaft 4, is movably connected with a screw rod 2; the L-shaped connecting rod 8 is of a similar arc-shaped structure, one end of the L-shaped connecting rod starts from the side face of the end part of the eccentric shaft 4, the groove of the arc-shaped structure faces the eccentric shaft 4, the other end of the L-shaped connecting rod is connected with the screw rod 2, one end of the screw rod 2 is connected with the free end of the arc-shaped structure, and the other end of the screw rod 2 extends to a face close to the eccentric shaft 4;

meanwhile, the end of the screw rod 2 extending to the side close to the eccentric shaft 4 is connected with a first fixing member, and the screw rod 2 is fixed in the tilting shaft 1 through the first fixing member and can rotate around the first fixing member.

As the prior art generally adopts a mode of meshing a gear shaft and a sector gear, the sector gear is fixed on an eccentric shaft, and the sector gear and the eccentric shaft are driven to rotate by rotating the gear shaft, thereby adjusting the eccentric amount of the head part of the eccentric shaft; the mode is pressed through multi-stage gear meshing when locking, the installation and the replacement are inconvenient, gear meshing has tooth side gaps, and a distribution chute cannot be completely pressed in the positive and negative rotation movement process.

Through the scheme, the eccentric shaft 4 is connected with the L-shaped connecting rod 8, the L-shaped connecting rod 8 is movably connected with the screw rod 2, the L-shaped connecting rod 8 is driven through the rotation of the adjusting screw rod 2, the eccentric shaft 4 is driven to rotate, the head eccentric amount of the eccentric shaft 4 is adjusted, and the material distribution chute is adjusted and compressed. The mode rotates the eccentric shaft 4 through the adjusting screw rod 2, and the structure for adjusting the eccentricity is simple and the installation is convenient.

Specifically, the first fixing part comprises a pin shaft 5, and the screw rod 2 is fixed in the tilting shaft 1 through the pin shaft 5. Here, for convenience, the screw 2 is movably connected with the L-shaped connecting rod 8, and the movable screw 2 is used for adjusting the L-shaped connecting rod 8 to drive the eccentric shaft 4 to rotate.

The screw rod 2 is provided with a connecting block at the end position of the connecting pin shaft 5, a first connecting hole is formed in the connecting block, and the pin shaft 5 penetrates through the first connecting hole in the connecting block and is connected with the tilting shaft 1. The structure that is equipped with first connecting hole in the middle of the connecting block is convenient with the end connection of round pin axle 5 with screw rod 2 to can realize that screw rod 2 rotates round pin axle 5, and then adjust the rotation of eccentric shaft 4.

Referring to fig. 4, a U-shaped groove is formed at the connection position of the L-shaped link 8 and the screw 2, two side walls of the U-shaped groove are connected through a cross shaft, and a second connection hole through which the screw 2 passes is formed in the middle of the cross shaft.

Nuts 3 are further arranged on two sides of the joint of the screw rod 2 and the U-shaped groove, and the nuts 3 are used for locking two ends of the screw rod 2.

Through above-mentioned scheme, adjusting screw 2 earlier originally and rotating, drive eccentric shaft 4 and rotate, adjust 4 head eccentric capacities of eccentric shaft, adjust and compress tightly the cloth chute, after adjusting, lock 2 both ends of screw rod through two nuts 3, prevent that screw rod 2 is not hard up.

Further, one end of the eccentric shaft 4 exposed from the tilt shaft 1 is fixed to the tilt shaft 1 by a second fixing member. The purpose is to press the eccentric shaft 4 against axial movement of the eccentric shaft 4.

Continuing to refer to fig. 1, wherein the second fixing member comprises a pressing plate 6 and a bolt 7; the pressing plate 6 is of a bending structure, one end of the pressing plate 6 is fixed at one end of the eccentric shaft 4, which is exposed out of the tilting shaft 1, and the other end of the pressing plate 6 is fixed on the tilting shaft 1 through a bolt 7. The pressing plate 6 can be selectively welded at the end part of the eccentric shaft 4, the connecting end of the pressing plate 6 and the eccentric shaft 4 can be set into an annular structure, the end part of the eccentric shaft 4 is sleeved with the pressing plate 6, and the other end of the pressing plate 6 is directly fixed on the radial section of the tilting shaft 1 through the bolt 7, so that the eccentric shaft 4 is fixed, and the axial movement of the eccentric shaft 4 is prevented.

An L-shaped connecting rod 8 is welded to the side end of the eccentric shaft 4. The L-shaped connecting rod 8 and the eccentric shaft 4 are fixed into a whole, so that the L-shaped connecting rod 8 can drive the eccentric shaft 4 to move conveniently.

A distributing chute is hung on the tilting shaft 1. The cloth chute hangs on tilting axis 1, through adjusting screw 2, drives eccentric shaft 4 and rotates, adjusts the eccentric shaft 4 head eccentric value, and then adjusts and compresses tightly the cloth chute, and the locking back, both ends nut 3 locks, and in the positive and negative rotation motion process, can compress tightly the cloth chute completely, prevents to remove. The eccentric locking device mainly prevents the material distribution chute from shaking during rotation and tilting, so that the material distribution chute operates stably, and the material distribution chute is prevented from shaking to impact a tilting speed reducer gear train.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims

1. A lever type eccentric locking device is characterized by comprising an eccentric shaft (4), an L-shaped connecting rod (8) and a screw (2);

the eccentric shaft (4) is installed in the tilting shaft (1), the side surface of the eccentric shaft (4) is also fixedly connected with an L-shaped connecting rod (8), and one end, far away from the eccentric shaft (4), of the L-shaped connecting rod (8) is movably connected with a screw (2);

the other end of the screw rod (2) is connected with a first fixing piece, and the screw rod (2) is fixed in the tilting shaft (1) through the first fixing piece and can rotate around the first fixing piece.

2. A lever type eccentric locking device as claimed in claim 1, characterized in that the first fixing member comprises a pin (5), and the screw (2) is fixed in the tilting shaft (1) by the pin (5).

3. A lever type eccentric locking device as claimed in claim 2, wherein the screw rod (2) is provided with a connecting block at the end position connected with the pin (5), the connecting block is internally provided with a first connecting hole, and the pin (5) passes through the first connecting hole in the connecting block and is connected with the tilting shaft (1).

4. A lever type eccentric locking device as claimed in claim 1, wherein the connection part of the L-shaped link (8) and the screw (2) is provided with a U-shaped groove, two side walls of the U-shaped groove are connected by a cross shaft, and a second connecting hole for the screw (2) to pass through is arranged in the middle of the cross shaft.

5. A lever type eccentric locking device as claimed in claim 4, wherein nuts (3) are further provided at both sides of the connection part of the screw rod (2) and the U-shaped groove, and the nuts (3) are used for locking both ends of the screw rod (2).

6. A lever type eccentric locking device as claimed in claim 1, wherein one end of the eccentric shaft (4) exposed out of the tilting shaft (1) is fixed in the tilting shaft (1) by a second fixing member.

7. A lever type eccentric locking device as claimed in claim 6, characterized in that the second fixing member comprises a pressure plate (6) and a bolt (7);

the pressing plate (6) is of a bent structure, one end of the pressing plate (6) is fixed at one end, exposed out of the eccentric shaft (4), of the tilting shaft (1), and the other end of the pressing plate is fixed on the tilting shaft (1) through the bolt (7).

8. A lever type eccentric locking device according to claim 1, characterized in that the L-shaped connecting rod (8) is welded to the side end of the eccentric shaft (4).

9. A lever type eccentric locking device as claimed in claim 1, characterized in that a distribution chute is hung on the tilting shaft (1).