Energy-saving hydraulic linear cylinder

Abstract

The energy-saving hydraulic linear cylinder comprises a hydraulic cylinder assembly and a buffering assembly, the hydraulic cylinder assembly comprises a hollow cylinder barrel, cylinder covers installed at the two ends of the cylinder barrel, a piston rod arranged in the cylinder barrel and a piston body arranged at the end of the piston rod, and annular threaded grooves are formed in the outer sides of the two ends of the cylinder barrel; a threaded annular plate is fixed to the inner side of the cylinder cover and is in threaded connection with the annular threaded groove, the buffering assemblies are arranged on the two sides of the interior of the cylinder barrel, and each buffering assembly comprises an installation annular plate installed at the end of the cylinder cover and an installation bolt arranged on the inner side of the installation annular plate. According to the energy-saving hydraulic linear cylinder, the piston piece in the hydraulic cylinder is buffered through the buffering assembly arranged in the cylinder barrel, the mechanical impact force of the piston piece on the cylinder cover is reduced, the service life of the hydraulic cylinder can be effectively prolonged, energy consumption of the hydraulic cylinder is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an energy-saving hydraulic linear cylinder. Background Art

[0002] Linear hydraulic cylinder is an important actuator, widely used in various hydraulic systems. Its function is to convert hydraulic energy into mechanical energy, and to achieve linear motion in mechanical and process processes by applying linear force to the object to be loaded and maintaining a certain moving speed.

[0003] When the existing linear hydraulic cylinder is in use, the piston inside the hydraulic cylinder is prone to mechanical collision with the cylinder head, which increases the energy consumption of the hydraulic cylinder and may cause damage to the hydraulic cylinder and reduce the service life of the hydraulic cylinder. Therefore, we propose an energy-saving hydraulic linear cylinder. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing hydraulic cylinders, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide an energy-saving hydraulic linear cylinder, which cushions the piston in the hydraulic cylinder by a buffer assembly arranged inside the cylinder barrel, thereby reducing the mechanical impact force of the piston on the cylinder head, effectively extending the service life of the hydraulic cylinder, saving energy consumption of the hydraulic cylinder, and achieving energy-saving effects.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] An energy-saving hydraulic linear cylinder, comprising:

[0009] The hydraulic cylinder assembly includes a hollow cylinder barrel, cylinder covers mounted on both ends of the cylinder barrel, a piston rod disposed inside the cylinder barrel, and a piston body disposed at the end of the piston rod. Annular thread grooves are formed on the outer sides of both ends of the cylinder barrel, and a threaded circular ring plate is fixed on the inner side of the cylinder cover. The threaded circular ring plate and the annular thread groove are threadedly connected.

[0010] A buffer assembly is provided on both sides of the interior of the cylinder, the buffer assembly comprising a mounting annular plate mounted on the end of the cylinder head, mounting bolts provided on the inner side of the mounting annular plate, a plurality of elastic members provided on the inner side of the mounting annular plate, and a buffer annular plate provided on the inner side of the elastic members, the mounting bolts passing through the mounting annular plate into the cylinder;

[0011] As a preferred solution of the energy-saving hydraulic linear cylinder described in the utility model, sealing plates are fixed to the outer walls of the cylinder barrel and the cylinder cover, and the sealing plates on the cylinder barrel and the cylinder cover fit tightly.

[0012] As a preferred solution of the energy-saving hydraulic linear cylinder described in the present invention, a sealing ring is provided on the inner side of the sealing plate, and the material of the sealing ring is rubber.

[0013] As a preferred solution of the energy-saving hydraulic linear cylinder described in the utility model, there are multiple mounting bolts, and the multiple mounting bolts are arranged in a ring with equal distances, and the mounting bolts are butterfly bolts.

[0014] As a preferred solution of the energy-saving hydraulic linear cylinder described in the present invention, there are multiple elastic members, and the multiple elastic members are arranged in a ring shape with equal distances. The elastic members are springs or elastic sleeves.

[0015] As a preferred solution of the energy-saving hydraulic linear cylinder described in the present invention, a protective pad is provided on the inner side of the buffer annular plate, and the material of the protective pad is rubber.

[0016] Compared with the prior art, the beneficial effect of the present invention is that this energy-saving hydraulic linear cylinder cushions the piston in the hydraulic cylinder through a buffer assembly arranged inside the cylinder barrel, thereby reducing the mechanical impact force of the piston on the cylinder cover, effectively extending the service life of the hydraulic cylinder, saving energy consumption of the hydraulic cylinder, and achieving energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0018] Figure 1 This is a schematic diagram of the sectional three-dimensional structure of an energy-saving hydraulic linear cylinder;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of an energy-saving hydraulic linear cylinder;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of an energy-saving hydraulic linear cylinder buffer component;

[0021] In the figure: 100, hydraulic cylinder assembly; 101, sealing plate; 110, cylinder barrel; 111, annular thread groove; 120, cylinder head; 121, threaded ring plate; 130, piston rod; 140, piston body; 200, buffer assembly; 210, mounting ring plate; 220, mounting bolt; 230, elastic member; 240, buffer ring plate. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] The utility model provides an energy-saving hydraulic linear cylinder, which cushions the piston in the hydraulic cylinder through a buffer assembly arranged inside the cylinder barrel, thereby reducing the mechanical impact force of the piston on the cylinder cover, effectively extending the service life of the hydraulic cylinder, saving energy consumption of the hydraulic cylinder, and achieving energy-saving effects.

[0026] Figure 1-Figure 3 The diagram shows the structure of an energy-saving hydraulic linear cylinder according to the present invention. Figure 1-Figure 3 In this embodiment, an energy-saving hydraulic linear cylinder includes a main body comprising a hydraulic cylinder assembly 100 and a buffer assembly 200 .

[0027] The hydraulic cylinder assembly 100 includes a cylinder barrel 110 with a hollow interior, a cylinder cover 120 installed at both ends of the cylinder barrel 110, a piston rod 130 arranged inside the cylinder barrel 110, and a piston body 140 arranged at the end of the piston rod 130. Annular thread grooves 111 are provided on the outer sides of both ends of the cylinder barrel 110, and a threaded circular ring plate 121 is fixed on the inner side of the cylinder cover 120. The threaded circular ring plate 121 and the annular thread groove 111 are threadedly connected. Preferably, in this embodiment, a sealing plate 101 is fixed to the outer walls of the cylinder barrel 110 and the cylinder head 120. The sealing plates 101 on the cylinder barrel 110 and the cylinder head 120 fit tightly. The sealing plate 101 arranged on the outer walls of the cylinder barrel 110 and the cylinder head 120 fits tightly, sealing the connection between the cylinder barrel 110 and the cylinder head 120, thereby ensuring the sealing of the entire hydraulic cylinder. A sealing ring is provided on the inner side of the sealing plate 101. The sealing ring is made of rubber, and the sealing ring arranged on the inner side of the sealing plate 101 further ensures the sealing of the entire hydraulic cylinder.

[0028] The buffer assembly 200 is disposed on both sides of the interior of the cylinder 110. The buffer assembly 200 includes a mounting annular plate 210 mounted on the end of the cylinder head 120, a mounting bolt 220 disposed on the inner side of the mounting annular plate 210, a plurality of elastic members 230 disposed on the inner side of the mounting annular plate 210, and a buffer annular plate 240 disposed on the inner side of the elastic member 230. The mounting bolts 220 extend through the mounting annular plate 210 into the cylinder 110. Preferably, in this embodiment, a plurality of mounting bolts 220 are provided, and the plurality of mounting bolts 220 are equidistantly arranged in a circular pattern. The mounting bolts 220 are butterfly bolts. The butterfly bolt mounting bolts 220 are convenient for the operator to manually remove them later to facilitate the disassembly and assembly of the buffer assembly 200. A protective pad is disposed on the inner side of the buffer annular plate 240. The protective pad is made of rubber. The protective pad disposed on the inner side of the buffer annular plate 240 protects the buffer annular plate 240 and the piston body 140, preventing direct contact and wear between the two, thereby effectively extending their service life.

[0029] Combine Figure 1-Figure 3, an energy-saving hydraulic linear cylinder of this embodiment is specifically used as follows: when the piston body 140 moves in the cylinder barrel 110 and collides with the cylinder cover 120, the elastic member 230 and the buffer annular plate 240 provided at the end of the cylinder cover 120 buffer the piston body 140, thereby reducing the mechanical impact force of the piston body 140 on the cylinder cover 120, which can effectively extend the service life of the hydraulic cylinder, save the energy consumption of the hydraulic cylinder, and achieve energy-saving effects. The cylinder barrel 110 and the cylinder cover 120 are connected to the threaded annular plate 121 and the ring The two components are screwed together under the action of the shaped thread groove 111, so that the operator can separate them later to expose the internal buffer assembly 200. The operator can remove the entire buffer assembly 200 from the end of the cylinder head 120 by removing the mounting bolts 220, so that the buffer assembly 200 can be replaced after long-term use. The sealing plate 101 arranged on the outer wall of the cylinder barrel 110 and the cylinder head 120 fits tightly, sealing the connection between the cylinder barrel 110 and the cylinder head 120 to ensure the sealing of the entire hydraulic cylinder.

[0030] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An energy-saving hydraulic linear cylinder, characterized in that: include: A hydraulic cylinder assembly (100) comprises a cylinder barrel (110) with a hollow interior, a cylinder cover (120) mounted at both ends of the cylinder barrel (110), a piston rod (130) disposed inside the cylinder barrel (110), and a piston body (140) disposed at the ends of the piston rod (130), wherein annular thread grooves (111) are formed on the outer sides of both ends of the cylinder barrel (110), a threaded circular ring plate (121) is fixed on the inner side of the cylinder cover (120), and the threaded circular ring plate (121) and the annular thread groove (111) are threadedly connected; A buffer assembly (200) is arranged on both sides of the interior of the cylinder barrel (110), and the buffer assembly (200) includes a mounting annular plate (210) mounted on the end of the cylinder cover (120), a mounting bolt (220) arranged on the inner side of the mounting annular plate (210), a plurality of elastic members (230) arranged on the inner side of the mounting annular plate (210), and a buffer annular plate (240) arranged on the inner side of the elastic member (230), wherein the mounting bolt (220) passes through the mounting annular plate (210) to the interior of the cylinder barrel (110).

2. The energy-saving hydraulic linear cylinder according to claim 1, characterized in that: Sealing plates (101) are fixed to the outer walls of the cylinder barrel (110) and the cylinder cover (120), and the sealing plates (101) on the cylinder barrel (110) and the cylinder cover (120) are tightly fitted.

3. The energy-saving hydraulic linear cylinder according to claim 2, characterized in that: A sealing ring is provided on the inner side of the sealing plate (101), and the sealing ring is made of rubber.

4. The energy-saving hydraulic linear cylinder according to claim 1, characterized in that: A plurality of the mounting bolts (220) are provided, and the plurality of mounting bolts (220) are arranged in an annular shape and at equal intervals. The mounting bolts (220) are butterfly bolts.

5. The energy-saving hydraulic linear cylinder according to claim 1, characterized in that: A plurality of elastic members (230) are provided, and the plurality of elastic members (230) are arranged in an annular shape and at equal intervals. The elastic member (230) is a spring or an elastic sleeve.

6. The energy-saving hydraulic linear cylinder according to claim 1, characterized in that: A protective pad is provided on the inner side of the buffer annular plate (240), and the material of the protective pad is rubber.

Images