Lifting and rotating integrated hydraulic cylinder

Abstract

The lifting and rotating integrated hydraulic cylinder comprises a furnace cover, a furnace cover arm, a cylinder barrel, a rotating shaft and a piston cylinder, the rotating shaft is arranged in the cylinder barrel, the lower end of the rotating shaft is connected with a piston rod of the piston cylinder, the piston rod of the piston cylinder is pushed or contracted, and the rotating shaft moves upwards or downwards along the inner wall of the cylinder barrel. The upper end of the rotating shaft is connected with the furnace cover through the furnace cover arm; a rotating shaft is arranged in the cylinder barrel, a shaft is transversely inserted in a shaft body of the rotating shaft, the two ends of the shaft protrude out of the outer surface of the rotating shaft and are provided with bearings, correspondingly, two inclined moving grooves are oppositely formed in the barrel wall of the cylinder barrel, and the bearings are located in the moving grooves to limit the rotating shaft when the rotating shaft moves up and down. The lifting and rotation of the furnace cover can be simultaneously controlled by only one piston cylinder, the operation is stable, and the structure is simple.

Description

Technical Field

[0001] The utility model belongs to the field of induction furnace control devices, and in particular relates to a lifting and rotating integrated hydraulic cylinder. Background Art

[0002] Currently, two piston cylinders are usually required to control the lifting and rotation of the induction furnace cover. One piston cylinder controls the lifting of the furnace cover, and the other piston cylinder controls the rotation of the furnace cover. The two piston cylinders require two hydraulic circuits, which increases the number of pipes, and the structure is complex and costly. The piston cylinder that controls the lifting is close to the high-temperature metal liquid, and the temperature is high, so the material of the piston cylinder needs to have high temperature resistance, which is costly; the piston cylinder that controls the rotation is installed on the same plane as the hydraulic piping. In order to avoid interference between the piping and the piston cylinder, the structure becomes complicated and the space is increased. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model proposes a lifting and rotating integrated hydraulic cylinder, which can control the lifting and rotating of the furnace cover at the same time with only one piston cylinder, has stable operation and simple structure.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A lifting and rotating integrated hydraulic cylinder, comprising: a furnace cover, a furnace cover arm, a cylinder barrel, a rotating shaft and a piston cylinder, wherein the rotating shaft is arranged in the cylinder barrel, the lower end of the rotating shaft is connected to the piston rod of the piston cylinder, the piston rod of the piston cylinder pushes or contracts, the rotating shaft moves upward or downward along the inner wall of the cylinder barrel, and the upper end of the rotating shaft is connected to the furnace cover through the furnace cover arm;

[0006] A shaft is horizontally inserted in the shaft body of the rotating shaft, and both ends of the shaft protrude from the outer surface of the rotating shaft and are provided with bearings. Correspondingly, two oblique movable grooves are relatively provided on the wall of the cylinder, and the bearings are located in the movable grooves to limit the rotating shaft when it moves up and down.

[0007] In a preferred embodiment, the furnace cover arm includes two clamping sections and a connecting section, and the overall structure is a "Y" shape. The front ends of the two clamping sections are fixedly connected to the two sides of the furnace cover, and the connecting section connects the rotating shaft and the rear ends of the two clamping sections.

[0008] In a preferred embodiment, the furnace cover is circular, and the two clamping sections of the furnace cover arm are clamped on both sides of the furnace cover and fixed by a pin.

[0009] In a preferred embodiment, the furnace cover arm is inserted into the top end of the rotating shaft, and then connected to the furnace cover arm and the rotating shaft by bolts through the end cover, and then a positioning pin is inserted for positioning.

[0010] In a preferred embodiment, the cylinder is cylindrical and the rotating shaft is columnar.

[0011] In a preferred embodiment, the moving groove includes a straight line segment at the lower end and a curved line segment at the upper end, so that the trajectory of the rotating shaft rising is first rising in a straight line and then rising in a rotating manner.

[0012] In a preferred embodiment, the fixing method of the piston rod of the piston cylinder and the lower end of the rotating shaft includes embedding connection or welding.

[0013] In a preferred embodiment, the curved section of the moving groove makes the rotation angle of the rotating axis depend on the angle of the spirally ascending moving groove, and the angle range is 0°-180°.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model combines the trajectories of lifting and rotating by setting a spiral ascending moving groove, so that when the piston cylinder pushes the rotating shaft to lift, the furnace cover rotation function can be realized at the same time. Since the piston cylinder is connected to the rotating shaft, when the piston cylinder moves up and down, the rotating shaft will also move up and down. At the same time, the bearing moves along the groove set in the cylinder barrel, and the groove is set as a spiral ascending trajectory, so that the rotating shaft can be spirally lifted and lowered, and the furnace cover arm fixed to the rotating shaft clamps the furnace cover to realize spiral lifting, which can effectively control the rotation range of the furnace cover. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a right side view of the utility model;

[0020] Figure 4 for Figure 1 A cross-sectional view;

[0021] Figure 5 for Figure 1 A partial enlarged view of point B.

[0022] Figure identification: 1-furnace cover; 2-furnace cover arm; 3-cylinder; 4-rotating shaft; 5-first flange; 6-second flange; 7-moving groove; 8-bearing; 9-shaft; 10-piston cylinder; 11-stand; 12-end cover; 13-bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figures 1 to 5The utility model discloses an integrated lifting and rotating hydraulic cylinder, including a furnace cover 1, a furnace cover arm 2, a cylinder barrel 3, a rotating shaft 4 and a piston cylinder 10. The rotating shaft 4 is sleeved in the cylinder barrel 3, and the lower end of the rotating shaft 4 is connected to the piston rod of the piston cylinder 10. As the piston rod pushes or contracts, the rotating shaft 4 moves upward or downward along the inner wall of the cylinder barrel 3, and the upper end of the rotating shaft 4 is connected to the furnace cover 1 through the furnace cover arm 2; the furnace cover 1 is circular, and the furnace cover arm 2 includes two clamping sections and a connecting section, which presents a "Y"-shaped structure as a whole. The two clamping sections are clamped on both sides of the furnace cover 1, and the two sides of the furnace cover 1 are fixed to the front end of the clamping section of the furnace cover arm 2 with a pin shaft, and the connecting section of the furnace cover arm 2 connects the rotating shaft 4 and the rear ends of the two clamping sections. Specifically, the furnace cover arm 2 is sleeved into the top end of the rotating shaft 4, and is connected to the furnace cover arm 2 and the rotating shaft 4 through the end cover 12 using bolts 13, and then inserted into the positioning pin for positioning.

[0027] A shaft 9 is also horizontally arranged in the shaft body of the rotating shaft 4. Both ends of the shaft 9 protrude from the outer surface of the rotating shaft 4 and are provided with bearings 8. Correspondingly, two movable grooves 7 are relatively provided on the cylinder 3. The bearings 8 are located in the movable grooves 7 to limit the rotating shaft 4 when it moves up and down.

[0028] When the furnace cover 1 is opened, in order to smoothly open the furnace cover 1, the furnace cover 1 needs to be raised first and then rotated. Therefore, in this embodiment, the moving groove 7 is set at two ends, including a straight line segment at the lower end and a curved segment at the upper end. Such a setting can make the trajectory of the rotating shaft 4 rise straight first and then rotate and rise. The furnace cover 1 is driven to rise straight first and then rotate and rise by the rising method of the rotating shaft 4. Preferably, the curved segment of the moving groove 7 can make the rotation angle range of the rotating shaft be 0°-180°. Figure 1 In one embodiment, the curved section of the movable groove 7 makes the rotation angle of the rotation axis 90°. After the complete rising rotation is completed, the position of the furnace cover 1 can be rotated from position a to position b.

[0029] In the present invention, the rotation and up and down movement of the rotating shaft 4 are performed in the cylinder 3, and the rotating shaft 4 needs to have good stability at the same time, therefore, the cylinder 3 is cylindrical, the rotating shaft 4 is cylindrical, and the shaft diameter of the rotating shaft 4 should have a large degree of fit with the diameter of the cylinder 3. In order to reduce the friction between the two, lubricating oil can be sprayed between the two.

[0030] like Figure 3 As shown, in this embodiment, the platform 11 includes an upper frame table, a lower frame table and a connecting rod connecting the upper frame table and the lower frame table. The upper frame table is provided with a mounting position for the cylinder 3. The first flange 5 is welded to the cylinder 3 as a whole. The second flange 6 is fixed to the upper frame table of the platform 11. The first flange 5 and the second flange 6 are threadedly connected and fixed, so that the cylinder 3 is fixed to the platform 11. When in use, the cylinder 3 is fixed. After installation, part of the cylinder 3 is located below the upper frame table.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting and rotating integrated hydraulic cylinder, characterized in that: It comprises a furnace cover (1), a furnace cover arm (2), a cylinder barrel (3), a rotating shaft (4) and a piston cylinder (10), wherein: The rotating shaft (4) is arranged in the cylinder (3), the lower end of the rotating shaft (4) is connected to the piston rod of the piston cylinder (10), the piston rod of the piston cylinder (10) pushes or contracts, and the rotating shaft (4) moves upward or downward along the inner wall of the cylinder (3), and the upper end of the rotating shaft (4) is connected to the furnace cover (1) through the furnace cover arm (2); A shaft (9) is inserted transversely into the shaft body of the rotating shaft (4), and both ends of the shaft (9) protrude from the outer surface of the rotating shaft (4) and are provided with bearings (8). Correspondingly, two oblique movable grooves (7) are relatively provided on the wall of the cylinder (3), and the bearings (8) are located in the movable grooves (7) to limit the position of the rotating shaft (4) when it moves up and down.

2. The lifting and rotating integrated hydraulic cylinder according to claim 1, characterized in that: The furnace cover arm (2) comprises two clamping sections and a connecting section, and is in a "Y"-shaped structure as a whole. The front ends of the two clamping sections are fixedly connected to the two sides of the furnace cover (1), and the connecting section connects the rotating shaft (4) and the rear ends of the two clamping sections.

3. The lifting and rotating integrated hydraulic cylinder according to claim 2, characterized in that: The furnace cover (1) is circular, and the two clamping sections of the furnace cover arm (2) are clamped on both sides of the furnace cover (1) and fixed using a pin shaft.

4. The lifting and rotating integrated hydraulic cylinder according to claim 1, characterized in that: The furnace cover arm (2) is inserted into the top end of the rotating shaft (4), and then connected to the furnace cover arm (2) and the rotating shaft (4) by bolts (13) through the end cover (12), and then a positioning pin is inserted for positioning.

5. The lifting and rotating integrated hydraulic cylinder according to claim 1, characterized in that: The cylinder (3) is cylindrical, and the rotating shaft (4) is columnar.

6. The lifting and rotating integrated hydraulic cylinder according to claim 1, characterized in that: The moving groove (7) comprises a straight line segment at the lower end and a curved line segment at the upper end, so that the trajectory of the rotating shaft (4) rising is to rise straightly first and then to rise in rotation.

7. The lifting and rotating integrated hydraulic cylinder according to claim 1, characterized in that: The fixing method of the piston rod of the piston cylinder (10) and the lower end of the rotating shaft (4) includes embedding connection or welding.

8. The lifting and rotating integrated hydraulic cylinder according to claim 6, characterized in that: The curved section of the moving groove (7) enables the rotation angle of the rotating shaft (4) to depend on the angle of the spirally ascending moving groove (7), and the angle range is 0°-180°.

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