Dovetail groove guide mechanism and hydraulic oil cylinder device applying same

Abstract

The dovetail groove guide mechanism comprises a guide rail and a guide rail sliding block, the guide rail is detachably arranged on the side, where a piston rod extends out, of a hydraulic oil cylinder, the length direction of the guide rail is the same as the axis direction of the piston rod, and the guide rail sliding block is slidably connected with the guide rail and detachably and fixedly connected with the piston rod; at least one side of the guide rail is provided with a dovetail block, and the guide rail sliding block is provided with a dovetail groove matched with the dovetail block. The hydraulic oil cylinder device comprises an oil cylinder guide structure and at least one hydraulic oil cylinder, piston rods of the hydraulic oil cylinders are guided and dragged through the oil cylinder guide structure, the dovetail groove guide structure is applied to the oil cylinder guide structure, the hydraulic oil cylinder device further comprises a fixing plate, the hydraulic oil cylinders are fixed to the fixing plate, and the number of the hydraulic oil cylinders corresponds to the number of the dovetail blocks. The hydraulic oil cylinder has the advantages that radial force and torque impact borne by the piston rod are overcome, the operation stability of the hydraulic oil cylinder is improved, and the service life of the hydraulic oil cylinder is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of nonferrous metals and metallurgical equipment, and in particular to a dovetail groove guide mechanism and a hydraulic cylinder device used therein. Background Art

[0002] During normal hydraulic cylinder operation, especially in horizontal long-stroke hydraulic cylinders, the piston rod is often subjected to large radial forces and torque impacts, which can cause unstable operation of the piston rod, deformation, and even damage to the hydraulic cylinder, shortening its service life, thereby affecting production efficiency and increasing production costs.

[0003] Therefore, there is an urgent need for a mechanism that can overcome the radial force and torque impact on the piston rod in non-ferrous metal and metallurgical equipment, improve the operating stability of the hydraulic cylinder piston rod and is not prone to deformation and damage. Utility Model Content

[0004] In order to overcome the radial force and torque impact on the piston rod, improve the smoothness of the hydraulic cylinder operation and extend the service life of the hydraulic cylinder.

[0005] The dovetail groove guide mechanism provided in this application and the hydraulic cylinder device used therein adopt the following technical solutions:

[0006] In a first aspect, the utility model provides a dovetail groove guide mechanism, comprising a guide rail and a guide rail slider, wherein the guide rail is detachably arranged on a side of a hydraulic cylinder from which a piston rod extends, and the length direction is in the same direction as the axis of the piston rod, the guide rail slider is slidably connected to the guide rail, and the guide rail slider is detachably fixedly connected to the piston rod;

[0007] A dovetail block is provided on at least one side of the guide rail, and a dovetail groove adapted to the dovetail block is provided on the guide rail slider.

[0008] Preferably, two dovetail blocks are provided, and the two dovetail blocks are provided on two opposite side walls of the guide rail.

[0009] Preferably, the guide rail is fixedly connected to the hydraulic cylinder by bolts.

[0010] Preferably, the guide rail slider is connected to the piston rod through threads.

[0011] In the second aspect, the utility model provides a hydraulic cylinder device, including a cylinder guide structure and at least one hydraulic cylinder. The piston rod of the hydraulic cylinder is guided and pulled by the cylinder guide structure. The cylinder guide structure applies the above-mentioned dovetail groove guide structure and also includes a fixed plate. The hydraulic cylinder is fixed on the fixed plate, and the number of hydraulic cylinders corresponds to the number of dovetail blocks.

[0012] Preferably, two hydraulic cylinders are provided, the two hydraulic cylinders are fixedly connected via a connecting piece, and the guide rail of the cylinder guide structure is provided between the two hydraulic cylinders.

[0013] Compared with the prior art, the dovetail groove guide mechanism of the present invention and the hydraulic cylinder device used therein have the following beneficial technical effects:

[0014] 1. During use, the guide rail and dovetail block fixed to the hydraulic cylinder, in conjunction with the guide rail slider on the piston rod, provide the piston rod with a stable traction and support force perpendicular to its direction of motion. This overcomes radial forces and torque impacts on the piston rod, thereby enhancing the smoothness of the piston rod's forward and backward movement. This extends the service life of the hydraulic cylinder and improves the stability of equipment operation. The structure is also simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly of a dovetail groove guide mechanism and a hydraulic cylinder device used in the utility model;

[0016] Figure 2 The utility model is a cross-sectional schematic diagram of a dovetail groove guide mechanism and a hydraulic cylinder device used therein.

[0017] Figure numerals: 1. Cylinder guide structure; 11. Guide rail; 12. Dovetail block; 13. Guide rail slider; 2. Hydraulic cylinder; 21. Piston rod; 3. Fixing plate; 4. Connecting piece. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons having ordinary skills in the field to which this application belongs. The words "a" or "an" and the like used in the patent application specification and claims of this application do not indicate a limitation on quantity, but rather indicate the presence of at least one.

[0020] The following is combined with Figure 1-2 This application is described in further detail.

[0021] The embodiment of the present application discloses a dovetail groove guide mechanism.

[0022] Reference Figure 1 and Figure 2 , a dovetail groove guiding mechanism, comprising a guide rail 11 and a slider of the guide rail 11. The guide rail 11 is fixedly connected to one side of the hydraulic cylinder 2 where the piston rod 21 extends through bolts, and the length direction thereof is the same as the axial direction of the piston rod 21. The slider of the guide rail 11 is slidably connected to the guide rail 11, and the slider of the guide rail 11 is threadedly connected to the piston rod 21. Furthermore, the guiding of the piston rod 21 of the hydraulic cylinder 2 is realized through the sliding fit between the guide rail 11 and the slider of the guide rail 11.

[0023] Furthermore, at least one side of the guide rail 11 is integrally formed with a dovetail block 12. In this embodiment, preferably, there are two dovetail blocks 12, and the two dovetail blocks 12 are respectively arranged on the upper and lower sides of the guide rail 11. A dovetail groove adapted to the dovetail block 12 is provided on the slider of the guide rail 11. During the normal operation of the equipment, the piston rod 21 moves back and forth, and the slider of the guide rail 11 follows the piston rod 21 and slides back and forth on the dovetail block 12 of the guide rail 11 through the dovetail groove. During this process, the guide rail 11 with the dovetail block 12 and the slider of the guide rail 11 provide stable traction force and supporting force to the piston rod 21 to overcome the radial force and torque impact of the piston rod 21, ensuring the smooth operation of the hydraulic cylinder 2, extending the service life of the hydraulic cylinder 2, and improving the stability of the equipment operation.

[0024] The embodiment of the present utility model also discloses a hydraulic cylinder 2 device.

[0025] Referring to Figure 1 and Figure 2 , a hydraulic cylinder 2 device, comprising an oil cylinder guiding structure 1 and at least one hydraulic cylinder 2. The piston rod 21 of the hydraulic cylinder 2 is guided and tractioned through the oil cylinder guiding structure 1, and the oil cylinder guiding structure 1 applies the above-mentioned dovetail groove guiding structure to conduct the guiding work of the piston rod 21.

[0026] Furthermore, a hydraulic cylinder 2 device further comprises a fixing plate 3. The hydraulic cylinder 2 is fixedly installed on the fixing plate 3, and the number of hydraulic cylinders 2 corresponds to the number of dovetail blocks 12. Preferably, there are two hydraulic cylinders 2 installed. The two hydraulic cylinders 2 are fixedly connected through a connecting member 4. The connecting member 4 is a "U" - shaped block and is fixedly connected to the hydraulic cylinder 2 through bolts. The guide rail 11 of the oil cylinder guiding structure 1 is installed between the two hydraulic cylinders 2. Furthermore, the guiding and supporting of the piston rods 21 of the two hydraulic cylinders 2 can be realized through one oil cylinder guiding structure 1.

[0027] The above are all the preferred embodiments of this application. The protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A dovetail groove guide mechanism, characterized in that: The invention comprises a guide rail (11) and a guide rail (11) slider. The guide rail (11) is detachably arranged on a side of a hydraulic cylinder (2) from which a piston rod (21) extends, and its length direction is the same as the axis direction of the piston rod (21). The guide rail (11) slider is slidably connected to the guide rail (11), and the guide rail (11) slider is detachably fixedly connected to the piston rod (21). A dovetail block (12) is provided on at least one side of the guide rail (11), and a dovetail groove adapted to the dovetail block (12) is provided on a slider of the guide rail (11).

2. A dovetail groove guide mechanism according to claim 1, characterized in that: Two dovetail blocks (12) are provided, and the two dovetail blocks (12) are provided on two opposite side walls of the guide rail (11).

3. The dovetail groove guide mechanism according to claim 1, characterized in that: The guide rail (11) is fixedly connected to the hydraulic cylinder (2) via bolts.

4. The dovetail groove guide mechanism according to claim 1, characterized in that: The guide rail (11) slider is connected to the piston rod (21) via threads.

5. A hydraulic cylinder (2) device, comprising a cylinder guide structure (1) and at least one hydraulic cylinder (2), wherein the piston rod (21) of the hydraulic cylinder (2) is guided and pulled by the cylinder guide structure (1), characterized in that: The cylinder guide structure (1) applies the dovetail groove guide structure as described in any one of claims 1 to 4, and also includes a fixed plate (3), and the hydraulic cylinder (2) is fixed on the fixed plate (3), and the number of the hydraulic cylinders (2) corresponds to the number of the dovetail blocks (12).

6. A hydraulic cylinder (2) device according to claim 5, characterized in that: Two hydraulic cylinders (2) are provided, and the two hydraulic cylinders (2) are fixedly connected via a connecting piece (4). The guide rail (11) of the cylinder guide structure (1) is provided between the two hydraulic cylinders (2).

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