CN211400798U

CN211400798U - Manual furnace door lifting mechanism

Info

Publication number: CN211400798U
Application number: CN201922222451.0U
Authority: CN
Inventors: 赵冬梅; 宋富强; 王岩; 王卫星; 孙雅静
Original assignee: Tianjin Yishan Construction Machinery Co Ltd
Current assignee: Tianjin Yishan Construction Machinery Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-09-01
Anticipated expiration: 2029-12-12

Abstract

The utility model provides a manual furnace door lifting mechanism, which comprises a lever component, a lifting ring, a furnace door, a connecting rod, a handle pull rod and a frame body; the lever assembly comprises a first cantilever, a second cantilever, a shaft sleeve, a long shaft and a support lug; one end of the support lug is welded on the frame body, and the other end of the support lug is used for supporting the rotation of the long shaft; the first cantilever and the second cantilever are respectively welded at two radial ends of the shaft sleeve and are on the same straight line; the shaft sleeve is welded and fixed with the long shaft; one end of the first cantilever, which is far away from the shaft sleeve, is used for suspending the furnace door; one end of the second cantilever, which is far away from the shaft sleeve, is used for hanging a balance weight; the other end of the long shaft is vertically connected with a third cantilever, and a handle pull rod is suspended at the tail end of the third cantilever. A manual furnace gate elevating system economic nature, the promptness that the furnace gate was opened and close have been guaranteed, and convenient operation, the simple easy manufacturing of structure, cost of maintenance are low.

Description

Manual furnace door lifting mechanism

Technical Field

The utility model belongs to the technical field of the metallurgy, especially, relate to a manual furnace gate elevating system.

Background

At present, the maintenance of various furnaces and kilns in the steel metallurgy and mechanical manufacturing industries and the repeated opening and closing of furnace doors are needed when workpieces enter and exit from furnace bodies, and the lifting of the furnace doors is generally realized by adopting the modes of pulleys, chain wheel transmission, connecting rod hydraulic cylinders, pneumatic and electromagnetic braking and the like. The structure is complicated, the opening and closing of the furnace door are greatly influenced by factors such as power, transmission and the like, the operation is inconvenient, and the maintenance and manufacturing cost are high.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a manual lifting mechanism for furnace door, which overcomes the drawbacks of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a manual furnace door lifting mechanism comprises a lever component, a third cantilever, a handle pull rod and a frame body;

the lever assembly comprises a first cantilever, a second cantilever, a shaft sleeve, a long shaft and a support lug;

one end of the support lug is welded on the frame body, and the other end of the support lug is used for supporting the long shaft to rotate; the first cantilever and the second cantilever are respectively welded at two radial ends of the shaft sleeve and are on the same straight line; the shaft sleeve is fixedly connected with the long shaft;

one end of the first cantilever, which is far away from the shaft sleeve, is used for suspending the furnace door; one end of the second cantilever, which is far away from the shaft sleeve, is used for hanging a balance weight;

the other axial end of the long shaft is vertically connected with a third cantilever, and a handle pull rod is suspended at the tail end of the third cantilever.

Furthermore, one end of the support lug is provided with a rotating shaft mounting hole for penetrating through the long shaft, and the other end of the support lug is welded and fixed on the frame body; the number of the support lugs is three;

the long shaft is provided with three annular grooves which are positioned at the contact positions of the three support lugs, so that the purpose that the long shaft rotates flexibly in the long shaft is achieved.

Further, a first key groove is formed in the inner side of the shaft sleeve; a second key groove is correspondingly formed between the two annular grooves of the long shaft; the long shaft penetrates through the shaft sleeve, a flat key is arranged between the first key groove and the second key groove, and the flat key is used for fixing the shaft sleeve and the long shaft.

Furthermore, one end of the long shaft axially far away from the second key groove extends outwards, and the end head of the long shaft is used as a cantilever mounting shaft; the cantilever mounting shaft is rectangular; the cantilever mounting shaft passes through a rectangular hole in the end of the third cantilever and is fixed by a gasket and a cotter pin.

Further, the length of the first cantilever corresponds to that of the second cantilever, and the length of the third cantilever is greater than that of the second cantilever;

the second cantilever is parallel to the third cantilever.

Furthermore, the long shaft and the support lug are fixed through a gasket and a cotter pin, and axial displacement is prevented.

Further, the balance weight is a plurality of stone blocks in the shape of weight; the total weight of the balance weight corresponds to the weight of the furnace door at the other end through a lever structure.

Compared with the prior art, the utility model discloses following advantage has:

the lever assembly is ingeniously added to realize the balance of the furnace door and the balance weight, and when the furnace door is opened and closed, the balance of the original lever mechanism can be broken only by slightly pulling or slightly pushing the pull rod manually, so that the aim of opening and closing the furnace door is fulfilled. The furnace door lifting mechanism ensures the economical efficiency and the timeliness of opening and closing the furnace door, is convenient to operate, simple in structure, easy to manufacture and low in maintenance cost.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic front view of a manual furnace door lifting mechanism according to an embodiment of the present invention;

fig. 2 is a schematic top view of a manual oven door lifting mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of a shaft sleeve according to an embodiment of the present invention;

fig. 4 is a schematic long axis view according to an embodiment of the present invention.

Description of reference numerals:

1. a furnace door; 2. a hoisting ring; 3. a wire rope; 4. supporting a lug; 5. a frame body; 6. a third cantilever; 7. a second hanging ring; 8. a connecting rod; 9. a handle pull rod; 10. balancing weight; 11. a first cantilever; 12. a shaft sleeve; 13. a long axis; 14. a second cantilever; A. a first key groove; B. a second key groove; C. an annular groove; D. a cantilever mounting shaft.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, a manual lifting mechanism for a furnace door 1 comprises a lever assembly, a third cantilever 6, a handle pull rod 9 and a frame body 5;

the frame body 5 is a channel steel structure welded on a steel structure on the outer side of the furnace door and used for fixing the furnace door lifting mechanism;

the lever assembly comprises a first cantilever 11, a second cantilever 14, a shaft sleeve 12, a long shaft 13 and a support lug 4;

one end of the support lug 4 is welded on the frame body 5, and the other end of the support lug is provided with a hole for supporting the rotation of the long shaft 13; the first cantilever 11 and the second cantilever 14 are respectively welded at two radial ends of the shaft sleeve 12, and the first cantilever 11 and the second cantilever 14 are on the same straight line; the shaft sleeve 12 is fixedly connected with the long shaft 13;

one end of the first cantilever 11, which is far away from the shaft sleeve 12, is arranged in the middle of the top end of the furnace door 1, and is connected with a lifting ring 2 through a steel wire rope 3, the lifting ring 2 is connected with the furnace door 1, one end of the second cantilever 14, which is far away from the shaft sleeve 12, is arranged at a frame structure on one side outside the furnace door 1 and is connected with a lifting ring II 7, and is connected with a connecting rod 8 through the lifting ring II 7, and the connecting rod 8 is used for hanging a counterweight 10;

the other axial end of the long shaft 13 is vertically connected with a third cantilever 6, and a handle pull rod 9 is suspended at the tail end of the third cantilever 6. When the furnace door 1 is opened and closed, the balance of the original lever mechanism can be broken only by slightly pulling or slightly pushing the pull rod manually, so that the purpose of opening and closing the furnace door 1 is realized.

One end of the support lug 4 is provided with a rotating shaft mounting hole for penetrating through the long shaft 13, and the other end of the support lug is welded and fixed on the frame body 5; the number of the support lugs 4 is three;

as shown in fig. 4, three annular grooves C are formed on the long shaft 13 for rotatably connecting with the three lugs 4.

As shown in fig. 3, a first key groove a is formed on the inner side of the shaft sleeve 12; a second key groove B is correspondingly arranged between the two annular grooves C of the long shaft 13; the long shaft 13 penetrates through the shaft sleeve 12, and a flat key is arranged between the first key groove A and the second key groove B and used for fixing the shaft sleeve 12 and the long shaft 13.

As shown in fig. 4, one end of the long shaft 13, which is far away from the second key slot B in the axial direction, extends outwards to form a cantilever mounting shaft D; the end of the cantilever mounting shaft D is rectangular; the cantilever installation shaft D passes through a rectangular hole at one end of the third cantilever 6 and fixes the third cantilever 6.

The length of the first cantilever 11 corresponds to that of the second cantilever 14, and the length of the third cantilever 6 is greater than that of the second cantilever 14;

the second boom 14 is parallel to the third boom 6.

The long shaft 13 and the support lug 4 are fixed through a gasket and a cotter pin to prevent axial displacement; the long shaft 13 and the third cantilever 6 are fixed through a gasket and a cotter pin.

The balance weight is a stone block in the shape of a plurality of sliding weights; the total weight of the balance weight corresponds to the weight of the furnace door at the other end through a lever structure.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a manual furnace gate elevating system which characterized in that: comprises a lever component, a third cantilever (6), a handle pull rod (9) and a frame body (5);

the lever assembly comprises a first cantilever (11), a second cantilever (14), a shaft sleeve (12), a long shaft (13) and a support lug (4);

one end of the support lug (4) is welded on the frame body (5), and the other end of the support lug penetrates through the long shaft (13) and is used for supporting the support lug to rotate; the first cantilever (11) and the second cantilever (14) are respectively welded at two radial ends of the shaft sleeve (12), and the first cantilever (11) and the second cantilever (14) are on the same straight line; the shaft sleeve (12) is welded and fixed with the long shaft (13);

one end of the first cantilever (11) far away from the shaft sleeve (12) is used for suspending the furnace door (1); one end of the second cantilever (14) far away from the shaft sleeve (12) is used for hanging the counterweight (10);

the other axial end of the long shaft (13) is vertically connected with a third cantilever (6), and a handle pull rod (9) is suspended at the tail end of the third cantilever (6).

2. A manual oven door lifting mechanism as claimed in claim 1, characterized in that: one end of the support lug (4) is provided with a rotating shaft mounting hole for supporting the long shaft (13) to rotate, and the other end of the support lug is welded and fixed on the frame body (5); the number of the support lugs (4) is three;

and three annular grooves (C) are formed in the long shaft (13) and are used for being rotatably connected with the three support lugs (4).

3. A manual oven door lifting mechanism as claimed in claim 2, characterized in that: a first key groove (A) is formed in the inner side of the shaft sleeve (12); a second key groove (B) is correspondingly arranged between the two annular grooves (C) of the long shaft (13); the shaft sleeve (12) is connected with the long shaft (13), a flat key is arranged between the first key groove (A) and the second key groove (B), and the flat key is used for fixing the shaft sleeve (12) and the long shaft (13).

4. A manual oven door lifting mechanism as claimed in claim 3, characterized in that: one end of the long shaft (13) radially far away from the second key groove (B) extends outwards, and the end head of the long shaft is used as a cantilever mounting shaft (D); the cantilever mounting shaft (D) is rectangular; and the cantilever mounting shaft (D) passes through a rectangular hole in the end of the third cantilever (6) and is fixed by a gasket and a split pin.

5. A manual oven door lifting mechanism as claimed in claim 1, characterized in that: the length of the first cantilever (11) corresponds to that of the second cantilever (14), and the length of the third cantilever (6) is greater than that of the second cantilever (14);

the second cantilever (14) is parallel to the third cantilever (6).

6. A manual oven door lifting mechanism as claimed in claim 1, characterized in that: the long shaft (13) and the support lug (4) are fixed through a gasket and a cotter pin, and axial displacement is prevented.

7. A manual oven door lifting mechanism as claimed in claim 1, characterized in that: the balance weight (10) is a stone block in the shape of a plurality of sliding weights; the total weight of the balance weight (10) corresponds to the weight of the other end of the furnace door (1) through a lever structure.