Control connecting rod connecting structure

Abstract

According to the control connecting rod connecting structure, the two ends of the bottom of a control connecting rod are connected to the upper portion of an oil cylinder base and the upper portion of a supporting plate respectively through shafts, the two ends of the upper portion of the control connecting rod are fixed to the oil cylinder base and the supporting plate respectively through L-shaped pressing plates, and the shafts penetrate through the control connecting rod. The shaft extending out of the upper end of the control connecting rod is fixed through a locking nut, and a lifting bolt is fixed to the upper end of the locking nut. By adding the connecting structure of the L-shaped pressing plate, the mounting structure of the control connecting rod is of a double-lug-plate connecting structure, the axial swing amount of the connecting position of the control connecting rod in the operation process can be reduced, the connecting stability of the control connecting rod is improved, the structure is simple, and disassembly is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic mud bubble control, and in particular relates to a control connecting rod connection structure. Background Art

[0002] Usually, hydraulic mud gun equipment is used in the tapping of blast furnaces. The hydraulic mud gun is used to block the tapping hole after the tapping is completed. The hydraulic mud gun consists of a rotating mechanism, a mud beating mechanism, a control connecting rod, a base, etc. During the operation of the mud gun, the rotating mechanism base, the swing arm, the control connecting rod and the mud beating mechanism together form a planar four-bar mechanism. The main function of this bar mechanism is that the mud gun mud beating mechanism completes a certain running trajectory during the rotary operation, and can accurately align with the tapping hole when approaching and reaching the tapping hole for subsequent plugging operations. The control connecting rod plays a very important role in this mechanism. On the one hand, during the debugging process, the control connecting rod can be adjusted to adjust the left and right directions of the gun nozzle to align with the tapping hole; on the other hand, when the equipment is put into use normally, the control connecting rod plays the role of connecting rod mechanism operation impact buffering during the operation of the mechanism; therefore, in actual use, when the control connecting rod is used to a certain extent, the control connecting rod that has lost the buffering effect needs to be replaced.

[0003] However, the control connecting rod currently used has the following shortcomings: 1. The control connecting rod is connected to both ends through an axis, and is fixed to the cylinder seat and the upper part of the support plate of the connecting parts at both ends by the lower baffle. When the equipment is running with a large impact, the shafts at both ends of the control connecting rod are prone to shaking; 2. The single-ear plate connection method is adopted, which will affect the service life of the control connecting rod when it is subjected to continuous and large impact; 3. Due to the connection of the single-ear plate, under continuous and large impact, the pins at both ends of the control connecting rod will be deformed, making it difficult to disassemble. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art. The utility model provides a control link connection structure, wherein the two ends of the bottom of the control link are respectively connected to the upper part of the cylinder seat and the support plate through shafts, and the two ends of the upper part of the control link are respectively fixed to the cylinder seat and the support plate through L-shaped pressure plates, the shaft passes through the control link, and the shaft extending out of the upper end of the control link is fixed by a locking nut, and a lifting screw is fixed to the upper end of the locking nut.

[0005] Furthermore, a pair of eye screws are fixed to the upper end of the locking nut, and the eye holes of the two eye screws are correspondingly arranged.

[0006] Furthermore, the L-shaped pressure plate is formed by connecting a vertical plate and a horizontal plate, a semi-open groove is provided on the horizontal plate, and the locking nut is fixed in the semi-open groove.

[0007] Furthermore, the L-shaped pressure plate is fixed to the cylinder seat and the support plate by welding or bolting.

[0008] Furthermore, the lower ends of the shafts at both ends of the control link are respectively fixed to the cylinder seat and the support plate through baffles.

[0009] Furthermore, spherical bearings are installed inside the two ends of the control link, and the spherical bearings are sleeved on the shaft.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1 In the utility model, the upper end of the control link is connected by a double-ear plate connection structure with an L-shaped pressure plate, which can reduce the axial swing of the control link connection during operation and improve the stability of its connection;

[0012] 2. The utility model improves the stress state of the pins at both ends of the control link during operation by using an L-shaped pressure plate structure, which is beneficial to prolonging the service life of the control link;

[0013] 3. The horizontal plate of the L-shaped pressure plate of the utility model is processed into a semi-open type, and the two sides are used to press the two sides of the end surface of the control connecting rod to limit the up and down swing amount of the control connecting rod head and increase its reliability during operation;

[0014] 4. The utility model is convenient for disassembly and installation and saves manpower by arranging a lifting screw on the locking nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a front view schematic diagram of the control connecting rod connection structure of the utility model;

[0018] Figure 2 It is a top view schematic diagram of the control connecting rod connection structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the L-shaped pressing plate of the utility model;

[0020] Figure 4 It is a schematic diagram of disassembly and assembly of the locking nut of the utility model.

[0021] Among them: 1-cylinder seat; 2-control connecting rod; 3-support plate; 4-shaft; 5-baffle; 6-spherical bearing; 7-L-type pressure plate; 8-eye screw; 9-locking nut; 71-vertical plate; 72-horizontal plate; 10-round steel. DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only used to illustrate the present invention and should not be construed as limiting the scope of the present invention.

[0023] According to the embodiment of the utility model, in combination with the attached Figure 1-2 As shown, the utility model provides a control link connection structure, in which an L-shaped pressure plate 7 is arranged on the support plate 3 connected at both ends of the control link 2 and the ear plate of the cylinder seat 1 of the mud beating mechanism. The L-shaped pressure plate 7 is welded by two steel plates, including a vertical plate 71 and a horizontal plate 72. Among them, a semi-open groove is opened on the horizontal plate 72. The L-shaped pressure plate 7 is welded as a whole with the support plate 3 and the ear plate of the cylinder seat 1 in the mud beating mechanism, and the structure is simple and convenient to manufacture. A lifting eye screw 8 is also arranged on the locking nut 9 installed and positioned on the control link 2, so that the locking nut 9 is easy to disassemble and assemble. This connection method is simple and easy to operate. By adding the structure of the L-shaped pressure plate 7 to the connecting parts at both ends, the installation structure of the control link 2 realizes a double-ear plate connection structure, which can reduce the axial swing of the connection of the control link 2 during operation, improve the stability of its connection, and has a simple structure and is easy to disassemble.

[0024] According to the embodiment of the utility model, in combination with the attached Figure 4 As shown, the shaft 4 at both ends of the control link 2 passes through the control link 2, and both ends of the shaft 4 extend out of the control link 2. The shaft 4 extending out of the upper end of the control link 2 is fixed by a locking nut 9, and a lifting eye screw 8 is fixed to the upper end of the locking nut 9. The lower ends of the shaft 4 at both ends of the control link 2 are respectively fixed to the cylinder seat 1 and the support plate 3 through a baffle 5. A pair of lifting eye screws 8 are fixed to the upper end of the locking nut 9. The lifting eye holes of the two lifting eye screws 8 are correspondingly arranged. The set lifting eye screws 8 are used to install and remove the locking nut 9. When disassembling or installing the control link 2, the disassembly round steel 10 is passed through the lifting eye holes of the set pair of lifting eye screws 8, and the locking nut 9 is disassembled and installed by rotating the round steel 10.

[0025] According to the embodiment of the utility model, in combination with the attached Figure 3As shown, the L-shaped pressing plate 7 is formed by connecting a vertical plate 71 and a horizontal plate 72, and a semi-open groove is provided on the horizontal plate 72, and the locking nut 9 is fixed in the semi-open groove, that is, the width of the semi-open groove is slightly larger than the diameter of the locking nut 9. The horizontal plate 72 of the L-shaped pressing plate 7 is tightly pressed on the upper end of the control connecting rod 2, and the lower end of the L-shaped pressing plate 7, that is, the vertical plate 71, is fixed to the cylinder seat 1 and the support plate 3 by welding or bolting.

[0026] According to the embodiment of the utility model, joint bearings 6 are installed inside the two ends of the control link 2, and the joint bearings 6 are sleeved on the shaft 4. When the shaft 4 needs to be installed into the control link 2, the joint bearings 6 are first installed into the control link 2, and a boss for placing the joint bearings 6 is provided on the inner wall of the control link 2, and then the shaft 4 is extended into the control link 2, passing through the joint bearings 6 and extending out of the bottom end of the control link 2; when the shaft needs to be disassembled, the shaft 4 only needs to be taken out from the lower end.

[0027] The disassembly operation method of the control link connection structure of the utility model is as follows: an L-shaped pressing plate 7 is set on the two end connecting pieces connected to the control link 2. The L-shaped pressing plate 7 and the connecting piece can be welded or connected by bolts. The horizontal plate 72 of the L-shaped pressing plate 7 is processed into a semi-open type, and the two sides are used to press the two sides of the end surface of the control link 2 to limit the left and right swing amount of the connecting axis of the rod head at both ends of the control link 2, thereby increasing its reliability during operation. At the same time, it increases the service life of the equipment. The locking nut 9 fixed at the upper end of the control link 2 is located at the opening of the horizontal plate 72, which is used for the operation of installing and removing the locking nut 9.

[0028] When disassembling or installing the control link 2, the disassembly round steel 10 is passed through the set eye screw 8, and the locking nut 9 is disassembled and installed by rotating the round steel 10. At this time, after removing the fixing bolts on the baffle 5, the shaft 4 can be taken out from the lower end, and the control link 2 is taken out from the side. When installation is required, the control link 2 is extended into the connecting structure from the side, and then the shaft 4 is inserted. The lower end of the shaft 4 is fixed by the baffle 5, and its upper end is fixed by the locking nut 9, and then it is rotated and tightened by the eye screw 8.

[0029] When the locking nut 9 is disassembled with great effort, the disassembly torque can be reduced by increasing the arm length of the round steel 10, thereby saving manpower. This structure is simple to process, convenient to disassemble and install, and convenient for on-site operation, thus saving manpower.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. A control link connection structure, wherein the two ends of the bottom of the control link (2) are respectively connected to the cylinder seat (1) and the upper part of the support plate (3) through a shaft (4), characterized in that: The two ends of the upper part of the control link (2) are respectively fixed to the cylinder seat (1) and the support plate (3) through an L-shaped pressure plate (7); the shaft (4) passes through the control link (2); the shaft (4) extending out of the upper end of the control link (2) is fixed by a locking nut (9); and a lifting eye screw (8) is fixed to the upper end of the locking nut (9).

2. The control link connection structure according to claim 1, characterized in that: A pair of eyebolts (8) are fixed to the upper end of the locking nut (9), and the eyebolt holes of the two eyebolts (8) are arranged correspondingly.

3. The control link connection structure according to claim 1, characterized in that: The L-shaped pressing plate (7) is formed by connecting a vertical plate (71) and a horizontal plate (72). A semi-open groove is provided on the horizontal plate (72), and the locking nut (9) is fixed in the semi-open groove.

4. The control link connection structure according to any one of claims 1 to 3, characterized in that: The L-shaped pressing plate (7) is fixed to the oil cylinder seat (1) and the supporting plate (3) by welding or bolting.

5. The control link connection structure according to claim 1, characterized in that: The lower ends of the shafts (4) located at both ends of the control connecting rod (2) are respectively fixed to the oil cylinder seat (1) and the support plate (3) through baffles (5).

6. The control link connection structure according to claim 1, characterized in that: Joint bearings (6) are installed inside the two ends of the control link (2), and the joint bearings (6) are sleeved on the shaft (4).

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