Hydraulic oil cylinder with protective structure

Abstract

The utility model discloses a hydraulic oil cylinder with a protective structure, which relates to the technical field of hydraulic oil cylinders, and comprises a hydraulic oil cylinder barrel and a piston rod, the protective mechanism is arranged on the outer wall of the hydraulic oil cylinder barrel, and the protective mechanism comprises a group of fixing sleeves and a plurality of protective shells arranged among the group of fixing sleeves; the set of fixing sleeves are arranged on the outer walls of the two ends of a hydraulic oil cylinder barrel correspondingly, the multiple protection shells are distributed on the outer axial face of the hydraulic oil cylinder barrel in a circular array mode, every two protection shells are attached to form an annular-structure-shaped outer shell, and the two ends of the outer shell are attached to the set of fixing sleeves correspondingly. A first through hole is formed in one end of the protective shell in a penetrating manner, and a guide screw rod is arranged in the first through hole; the shell protects the cylinder barrel of the hydraulic oil cylinder, metal fragments are prevented from splashing to damage surrounding personnel, meanwhile, the cylinder barrel of the hydraulic oil cylinder can be prevented from being impacted, and the protection function of the hydraulic oil cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with a protective structure. Background Art

[0002] With the development of China's industrialization process and the development of large-scale assembly manufacturing industry, the oil cylinder, as a power actuator, plays an important role in all walks of life. Its characteristics are stable and high output force.

[0003] There are many types of common cylinders on the market. Hydraulic cylinders are hydraulic actuators that can convert hydraulic energy into mechanical energy to achieve reciprocating linear motion or swinging motion of the connecting structure. They have a simple structure and high reliability.

[0004] In some existing technologies, the cylinder body of some existing hydraulic cylinders is a metal whole. When the hydraulic cylinder explodes, the cylinder body also explodes directly, which easily causes metal fragments to splash and cause harm to people around. In addition, the outer wall of some hydraulic cylinder bodies is easily hit when working, causing the cylinder body to rupture and then damage the cylinder.

[0005] Therefore, it is necessary to provide a hydraulic cylinder with a protective structure to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic cylinder with a protective structure. The outer shell protects the cylinder barrel of the hydraulic cylinder to prevent metal fragments from splashing and causing harm to surrounding personnel. At the same time, it can prevent the cylinder barrel of the hydraulic cylinder from being hit, thereby improving the protective function of the hydraulic cylinder.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydraulic cylinder with a protective structure, comprising a hydraulic cylinder barrel and a piston rod, a protective mechanism being arranged on the outer wall of the hydraulic cylinder barrel, the protective mechanism comprising a group of fixing sleeves and a plurality of protective shells arranged between the group of fixing sleeves; a group of the fixing sleeves are respectively arranged on the outer walls at both ends of the hydraulic cylinder barrel, a plurality of the protective shells are distributed in a circular array on the outer axial surface of the hydraulic cylinder barrel, a plurality of the protective shells are affixed to each other to form an annular structure-shaped outer shell, and the two ends of the outer shell are respectively affixed to a group of fixing sleeves; a first through hole is formed through one end of the protective shell, a guide screw is provided in the first through hole, a second through hole adapted to the guide screw is formed on a group of the fixing sleeves, and both ends of the guide rod screw pass through the second through hole and are threadedly connected with nuts.

[0008] In order to protect against flying metal fragments, a hydraulic oil cylinder with a protective structure is preferably provided in the utility model, wherein a spring sleeve fixedly connected to a set of fixed sleeves is provided in the outer shell, and the cylinder barrel of the hydraulic oil cylinder is located in the spring sleeve.

[0009] In order to achieve a vibration isolation effect, as a preferred hydraulic oil cylinder with a protective structure of the utility model, a buffer shell is arranged parallel to the side of the protective shell away from the cylinder barrel of the hydraulic oil cylinder, and there is a gap between two adjacent buffer shells; a number of damping spring shock absorbers are arranged along the length direction between the buffer shell and the protective shell.

[0010] In order to improve the stability of the protective shell, as a preferred embodiment of the hydraulic oil cylinder with a protective structure of the present invention, the number of the first through holes on the protective shell is not less than two.

[0011] In order to provide the function of injecting oil into the hydraulic cylinder, as a preferred embodiment of the hydraulic cylinder with a protective structure of the present invention, an oil port is provided on the fixing sleeve.

[0012] In order to facilitate the installation of the hydraulic cylinder, a hydraulic oil cylinder with a protective structure is preferably provided in the present invention, wherein a hinge plate is provided at one end of the hydraulic oil cylinder barrel away from the piston rod, and a mounting ring is provided at one end of the piston rod away from the hydraulic oil cylinder barrel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model uses a fixing sleeve, a protective shell, and a guide screw, and inserts the guide screw into the first through hole of the protective shell and the second through hole of the fixing sleeve. The two ends of the guide screw are restricted and fixed by using nuts, so that a plurality of protective shells are distributed along the outer axial surface of the hydraulic cylinder barrel and form an outer shell, so that the hydraulic cylinder barrel is sleeved in the outer shell, and the outer shell forms a protective effect on the hydraulic cylinder barrel; when the hydraulic cylinder explodes and the cylinder body also explodes directly, the outer shell can prevent metal fragments from flying around, and avoid the metal fragments from flying and causing harm to surrounding personnel; at the same time, the outer shell can prevent the hydraulic cylinder barrel from being hit, and can prevent the cylinder body from rupturing and causing damage to the cylinder, thereby improving the protective function of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the protective shell and buffer shell structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the shell structure of the utility model.

[0018] In the figure: 1. Hydraulic cylinder barrel; 2. Piston rod; 3. Fixed sleeve; 4. Protective shell; 5. Outer shell; 6. First through hole; 7. Guide screw; 8. Second through hole; 9. Nut; 10. Spring sleeve; 11. Buffer shell; 12. Damping spring shock absorber; 13. Oil port; 14. Hinge plate; 15. Mounting ring. DETAILED DESCRIPTION

[0019] See also Figures 1 to 3 A hydraulic cylinder with a protective structure includes a hydraulic cylinder barrel 1 and a piston rod 2. A protective mechanism is provided on the outer wall of the hydraulic cylinder barrel 1, and the protective mechanism includes a group of fixed sleeves 3 and a plurality of protective shells 4 arranged between the group of fixed sleeves 3; a group of fixed sleeves 3 are respectively arranged on the outer walls of both ends of the hydraulic cylinder barrel 1, and a plurality of protective shells 4 are distributed in a circular array on the outer axial surface of the hydraulic cylinder barrel 1, and a plurality of protective shells 4 are affixed to each other in pairs to form an annular structure-shaped outer shell 5, and the two ends of the outer shell 5 are respectively affixed to a group of fixed sleeves 3; a first through hole 6 is opened at one end of the protective shell 4, and a guide screw 7 is provided in the first through hole 6, and a second through hole 8 adapted to the guide screw 7 is opened on a group of fixed sleeves 3, and both ends of the guide rod screw pass through the second through hole 8 and are threadedly connected with nuts 9.

[0020] In this embodiment: several protective shells 4 are arranged along the outer axial surface of the hydraulic cylinder barrel 1 to form an outer shell 5, and the two ends of the outer shell 5 are respectively attached to a group of fixed sleeves 3, so that the hydraulic cylinder barrel 1 is sleeved in the outer shell 5, so that the outer shell 5 forms a protective effect on the hydraulic cylinder barrel 1; when the hydraulic cylinder explodes and the cylinder body also explodes directly, the outer shell 5 can prevent metal fragments from flying around, avoiding the metal fragments from flying and causing harm to the surrounding personnel; at the same time, the outer shell 5 can prevent the hydraulic cylinder barrel 1 from being hit, and can prevent the cylinder body from rupturing and causing damage to the cylinder; and a guide screw 7 is inserted into the first through hole 6 of the protective shell 4 and the second through hole 8 of the fixed sleeve 3, and the two ends of the guide screw 7 are restricted and fixed with nuts 9, so that the protective shell 4 can be easily disassembled.

[0021] As a technical optimization solution of the present invention, a spring sleeve 10 fixedly connected to a set of fixing sleeves 3 is provided in the housing 5 , and the hydraulic cylinder barrel 1 is located in the spring sleeve 10 .

[0022] In this embodiment, when the hydraulic cylinder explodes, the cylinder body also explodes directly, and metal fragments fly around. The spring sleeve 10 can block the metal fragments and reduce the impact force between the metal fragments and the housing 5.

[0023] As a technical optimization solution of the present invention, a buffer shell 11 is arranged parallel to the side of the protective shell 4 away from the hydraulic cylinder barrel 1, and there is a gap between two adjacent buffer shells 11; a number of damping spring shock absorbers 12 are arranged along the length direction between the buffer shell 11 and the protective shell 4.

[0024] In this embodiment: when the hydraulic cylinder is operating, the buffer shell 11 and the protective shell 4 prevent the outer wall of the hydraulic cylinder barrel 1 from being directly hit. Even if a collision occurs, the outer wall will first hit the buffer shell 11; and a damping spring shock absorber 12 is provided between the buffer shell 11 and the protective shell 4. When the buffer shell 11 is hit, the damping spring shock absorber 12 can effectively dissipate the energy generated by the collision, reduce the collision force, and improve the shock resistance of the protective shell 4, reducing the damage to the hydraulic cylinder barrel 1 caused by the vibration and impact caused by the collision, so that the outer wall of the hydraulic cylinder barrel 1 is not easily hit and damaged, thereby realizing the anti-collision function.

[0025] As a technical optimization solution of the present invention, the number of the first through holes 6 on the protective shell 4 is not less than two.

[0026] In this embodiment: if there is only one through hole, the protective shell 4 can rotate around the guide screw 7 during installation, which makes it difficult to position; if the number of first through holes 6 is greater than one, a guide screw 7 is installed in each of the multiple first through holes 6, and the guide screw 7 can limit the rotation of the protective shell 4, thereby improving the installation stability of the protective shell 4.

[0027] As a technical optimization solution of the present invention, an oil port 13 is provided on the fixing sleeve 3 .

[0028] In this embodiment, the oil port 13 is used to inject oil into the hydraulic cylinder.

[0029] As a technical optimization solution of the present invention, a hinge plate 14 is provided at one end of the hydraulic cylinder barrel 1 away from the piston rod 2 , and a mounting ring 15 is provided at one end of the piston rod 2 away from the hydraulic cylinder barrel 1 .

[0030] In this embodiment, the hinge plate 14 is easy to install the hydraulic cylinder barrel 1, and the piston rod 2 passes through the mounting ring 15, so that the piston rod 2 is easy to connect with the driving member.

[0031] Working principle: First, a guide screw 7 is inserted into the first through hole 6 of the protective shell 4 and the second through hole 8 of the fixed sleeve 3. The two ends of the guide screw 7 are restricted and fixed with nuts 9, so that several protective shells 4 are distributed along the outer axial surface of the hydraulic cylinder barrel 1 and form an outer shell 5. The two ends of the outer shell 5 are respectively attached to a group of fixed sleeves 3, so that the hydraulic cylinder barrel 1 is sleeved in the outer shell 5, so that the outer shell 5 forms a protective effect on the hydraulic cylinder barrel 1; when the hydraulic cylinder explodes, the cylinder body also explodes directly, and the outer shell 5 can prevent metal fragments from flying around, avoiding metal fragments from splashing to people around and the outer wall of the hydraulic cylinder barrel 1 is not easily directly impacted by the buffer shell 11 and the protective shell 4. At the same time, the damping of the damping spring shock absorber 12 between the buffer shell 11 and the protective shell 4 can effectively dissipate the energy generated by the collision, reduce the collision force, and improve the shock resistance of the protective shell 4, thereby reducing the damage to the hydraulic cylinder barrel 1 caused by the vibration and impact caused by the collision, so that the outer wall of the hydraulic cylinder barrel 1 is not easily impacted and the cylinder is damaged, thereby realizing the anti-collision function.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic cylinder with a protective structure, comprising a hydraulic cylinder barrel (1) and a piston rod (2), wherein a protective mechanism is provided on the outer wall of the hydraulic cylinder barrel (1), and characterized in that: The protective mechanism comprises a group of fixed sleeves (3) and a plurality of protective shells (4) arranged between the group of fixed sleeves (3); the group of fixed sleeves (3) are respectively arranged on the outer walls of the two ends of the hydraulic cylinder barrel (1); the plurality of protective shells (4) are arranged in a circular array on the outer axial surface of the hydraulic cylinder barrel (1); the plurality of protective shells (4) are abutted against each other to form an annular structured outer shell (5), and the two ends of the outer shell (5) are respectively abutted against the group of fixed sleeves (3); a first through hole (6) is provided through one end of the protective shell (4), a guide screw (7) is provided in the first through hole (6), a second through hole (8) adapted to the guide screw (7) is provided on the group of fixed sleeves (3), and the two ends of the guide screw pass through the second through hole (8) and are threadedly connected with nuts (9).

2. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A spring sleeve (10) fixedly connected to a set of fixed sleeves (3) is provided in the outer shell (5), and the hydraulic cylinder barrel (1) is located in the spring sleeve (10).

3. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A buffer shell (11) is arranged in parallel on one side of the protective shell (4) away from the hydraulic cylinder barrel (1), and a gap exists between two adjacent buffer shells (11); and a plurality of damping spring shock absorbers (12) are arranged along the length direction between the buffer shell (11) and the protective shell (4).

4. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: The number of the first through holes (6) on the protective shell (4) is no less than two.

5. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: The fixing sleeve (3) is provided with an oil port (13).

6. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A hinge plate (14) is provided at one end of the hydraulic cylinder barrel (1) away from the piston rod (2), and a mounting ring (15) is provided at one end of the piston rod (2) away from the hydraulic cylinder barrel (1).

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