Hydraulic cylinder convenient to adjust

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder convenient to adjust, which comprises a hydraulic cylinder body, an adjusting assembly is arranged on the outer wall of the hydraulic cylinder body, and the adjusting assembly comprises supporting plates which are fixedly connected to the front side and the rear side of the hydraulic cylinder body and are symmetrically distributed left and right. A screw rod is rotationally connected between the two supporting plates located on the same side, driving blocks are in threaded connection with the outer walls of the two screw rods, an extending frame is fixedly connected between the two side walls of the two driving blocks, and the right ends of the two screw rods penetrate through the two supporting plates located at the right end and are fixedly connected with first bevel gears; two symmetrically-distributed mounting plates are fixedly connected to the outer wall of the hydraulic cylinder body, a worm is rotationally connected between the two mounting plates in a penetrating mode, the telescopic length of the hydraulic cylinder can be automatically adjusted through cooperation of a driving assembly and an extension frame when a longer telescopic distance needs to be adjusted, operation is easy, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder that is easy to adjust. Background Technology

[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy. It mainly consists of a cylinder barrel, piston, piston rod, seals, and other parts. In existing hydraulic devices, the stroke of a hydraulic cylinder is generally a fixed length. If it is necessary to push an object a longer distance during use, a new hydraulic cylinder needs to be replaced. The extension length cannot be adjusted, which is inconvenient to use.

[0003] Chinese Patent No. CN218717866U discloses a hydraulic cylinder with adjustable telescopic length, comprising: a cylinder body, a piston body, a connecting rail, a connecting sleeve, a connecting protrusion, a mounting rod, a positioning hole, and a positioning screw. A live base is fitted inside the cylinder body. The connecting rail is located at the left end of the cylinder body. A connecting protrusion is provided on the outer surface of the connecting sleeve slightly to the left of its center. The connecting protrusion is connected to the connecting rail. A through hole is provided at the end of the connecting sleeve. Positioning holes are equidistantly provided on the outer surface of the mounting rod. A positioning screw is provided at the through hole on the connecting sleeve, and the positioning screw is threadedly connected to the positioning hole. Optionally, a push rod is also included, which is fixedly connected to the surface at the middle right side of the piston body. This application has the advantages of convenient operation, a large adjustment range, and good practicality.

[0004] When adjusting the telescopic length of the above device, it is necessary to remove and install positioning screws to position the mounting rod, which requires manual adjustment and is relatively troublesome. Therefore, it is necessary to propose a hydraulic cylinder that is easy to adjust to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an easily adjustable hydraulic cylinder, which can automatically adjust the extension length of the hydraulic cylinder when a longer extension distance is required through the cooperation of the drive component and the extension frame. It is simple to operate and easy to use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an easily adjustable hydraulic cylinder, comprising a hydraulic cylinder body, wherein an adjustment assembly is provided on the outer wall of the hydraulic cylinder body, the adjustment assembly comprising support plates fixedly connected to the front and rear sides of the hydraulic cylinder body and symmetrically distributed in pairs, a lead screw rotatably connected between two support plates on the same side, a drive block threadedly connected to the outer wall of each of the two lead screws, and an extension frame fixedly connected between the two side walls of the two drive blocks;

[0007] The right ends of the two lead screws are respectively connected to two support plates located at the right ends and fixedly connected to a first bevel gear. The outer wall of the hydraulic cylinder body is fixedly connected to two symmetrically distributed mounting plates. A worm gear is connected through and rotatably between the two mounting plates. The front and rear ends of the worm gear are fixedly connected to a second bevel gear that meshes with the two first bevel gears respectively.

[0008] The outer wall of the hydraulic cylinder body is provided with a drive assembly.

[0009] In order to drive the worm gear and worm to rotate, as a preferred embodiment of the present invention for an easily adjustable hydraulic cylinder, the driving assembly includes a fixed plate fixedly connected to the left end of two mounting plates, a stepper motor is mounted on the outer wall of the fixed plate, and the output end of the stepper motor passes through the fixed plate and is fixedly connected to a worm gear that meshes with the worm.

[0010] To prevent the two lead screws from rotating axially, as a preferred embodiment of the adjustable hydraulic cylinder of this invention, the upper and right ends of the extension frame are open, and the bottom end inside the extension frame abuts against the outer wall of the hydraulic cylinder body.

[0011] In order to drive the two lead screws to rotate in opposite directions, as a preferred embodiment of the present invention, the two second bevel gears are respectively located on the side of the two first bevel gears that are relatively far apart.

[0012] To facilitate the installation of the extension frame and the hydraulic cylinder body on external equipment, as a preferred embodiment of the present invention for an easily adjustable hydraulic cylinder, the left end of the extension frame is fixedly connected to a mounting base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses a drive assembly to drive a worm gear to rotate. When the worm gear rotates, it drives two second bevel gears that mesh with it to rotate. When the two second bevel gears rotate, they drive two first bevel gears and two lead screws that mesh with them to rotate simultaneously. This drives two drive blocks connected to it to move simultaneously, thereby driving the extension frame to move. This achieves the goal of automatically adjusting the extension length of the hydraulic cylinder when a longer extension distance needs to be adjusted through the cooperation of the drive assembly and the extension frame. The invention is simple to operate and convenient to use. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a structural diagram of the extension frame of this utility model.

[0018] In the diagram: 1. Hydraulic cylinder body; 2. Support plate; 3. Lead screw; 4. Drive block; 5. Mounting plate; 6. Fixing plate; 7. Stepper motor; 8. Worm gear; 9. Second bevel gear; 10. First bevel gear; 11. Worm wheel; 12. Extension frame. Detailed Implementation

[0019] Please see Figures 1 to 3 An adjustable hydraulic cylinder includes a hydraulic cylinder body 1. An adjustment assembly is provided on the outer wall of the hydraulic cylinder body 1. The adjustment assembly includes support plates 2 that are fixedly connected to the front and rear sides of the hydraulic cylinder body 1 and are symmetrically distributed in pairs. A lead screw 3 is rotatably connected between the two support plates 2 on the same side. A drive block 4 is threadedly connected to the outer wall of each of the two lead screws 3. An extension frame 12 is fixedly connected between the two side walls of the two drive blocks 4.

[0020] The right ends of the two lead screws 3 pass through the two support plates 2 located at the right ends and are fixedly connected to the first bevel gears 10. The outer wall of the hydraulic cylinder body 1 is fixedly connected to two symmetrically distributed mounting plates 5. A worm gear 8 passes through and is rotatably connected between the two mounting plates 5. The front and rear ends of the worm gear 8 are fixedly connected to the second bevel gears 9 that mesh with the two first bevel gears 10 respectively.

[0021] The outer wall of the hydraulic cylinder body 1 is provided with a drive assembly.

[0022] In this embodiment: during use, the worm 8 is driven to rotate by the drive assembly. When the worm 8 rotates, it drives the two second bevel gears 9 that mesh with it to rotate. When the two second bevel gears 9 rotate, they drive the two first bevel gears 10 and the two lead screws 3 that mesh with them to rotate simultaneously. This drives the two drive blocks 4 connected to them to move simultaneously, thereby driving the extension frame 12 to move, thereby increasing the overall extension length of the hydraulic cylinder body 1.

[0023] As a technical optimization of this utility model, the drive assembly includes a fixed plate 6 fixedly connected to the left end of the two mounting plates 5. A stepper motor 7 is installed on the outer wall of the fixed plate 6. The output end of the stepper motor 7 passes through the fixed plate 6 and is fixedly connected to a worm wheel 11 that meshes with the worm 8.

[0024] In this embodiment: the fixing plate 6 can be used to support the stepper motor 7, and the stepper motor 7 can drive the worm gear 11 to rotate, thereby driving the worm 8 to rotate.

[0025] As a technical optimization of this utility model, the upper end and right end of the extension frame 12 are open, and the bottom end inside the extension frame 12 abuts against the outer wall of the hydraulic cylinder body 1.

[0026] In this embodiment, the extension frame 12 can increase the overall length of the hydraulic cylinder body 1 on the one hand, and prevent the two lead screws 3 from rotating axially on the other hand.

[0027] As a technical optimization of this utility model, the two second bevel gears 9 are respectively located on the side of the two first bevel gears 10 that are relatively far apart.

[0028] In this embodiment, the two second bevel gears 9 are located on opposite sides of the two first bevel gears 10, thereby driving the two lead screws 3 to rotate in opposite directions.

[0029] As a technical optimization of this utility model, the left end of the extension frame 12 is fixedly connected to a mounting base.

[0030] In this embodiment, the extension frame 12 and the hydraulic cylinder body 1 can be easily installed on external equipment via the mounting base.

[0031] Working principle: In use, the extension frame 12 and the hydraulic cylinder body 1 are installed on the external equipment through the mounting base. When it is necessary to increase the extension length of the hydraulic cylinder body 1, the stepper motor 7 can drive the worm gear 11 to rotate, which in turn drives the worm 8 to rotate. When the worm 8 rotates, it drives the two second bevel gears 9 that mesh with it to rotate. When the two second bevel gears 9 rotate, they drive the two first bevel gears 10 and the two lead screws 3 that mesh with them to rotate simultaneously. This drives the two drive blocks 4 connected to them to move simultaneously, which in turn drives the extension frame 12 to move, thereby increasing the overall extension length of the hydraulic cylinder body 1.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easily adjustable hydraulic cylinder, comprising a hydraulic cylinder body (1), characterized in that: The outer wall of the hydraulic cylinder body (1) is provided with an adjustment assembly. The adjustment assembly includes support plates (2) that are fixedly connected to the front and rear sides of the hydraulic cylinder body (1) and symmetrically distributed in pairs. A lead screw (3) is rotatably connected between the two support plates (2) on the same side. A drive block (4) is threadedly connected to the outer wall of the two lead screws (3). An extension frame (12) is fixedly connected between the two side walls of the two drive blocks (4). The right ends of the two lead screws (3) pass through the two support plates (2) located at the right ends and are fixedly connected to the first bevel gears (10). The outer wall of the hydraulic cylinder body (1) is fixedly connected to two symmetrically distributed mounting plates (5). A worm gear (8) passes through and is rotatably connected between the two mounting plates (5). The front and rear ends of the worm gear (8) are fixedly connected to the second bevel gears (9) that mesh with the two first bevel gears (10). The outer wall of the hydraulic cylinder body (1) is provided with a drive assembly.

2. The easily adjustable hydraulic cylinder according to claim 1, characterized in that: The drive assembly includes a fixed plate (6) fixedly connected to the left end of two mounting plates (5). A stepper motor (7) is mounted on the outer wall of the fixed plate (6). The output end of the stepper motor (7) passes through the fixed plate (6) and is fixedly connected to a worm wheel (11) that meshes with the worm (8).

3. The easily adjustable hydraulic cylinder according to claim 1, characterized in that: The upper and right ends of the extension frame (12) are open, and the bottom end inside the extension frame (12) abuts against the outer wall of the hydraulic cylinder body (1).

4. The easily adjustable hydraulic cylinder according to claim 1, characterized in that: The two second bevel gears (9) are located on opposite sides of the two first bevel gears (10).

5. The easily adjustable hydraulic cylinder according to claim 1, characterized in that: The left end of the extension frame (12) is fixedly connected to a mounting base.

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