CN-224229000-U - Protection device for extending out of cylinder piston rod

Abstract

The utility model relates to an oil cylinder piston rod extending protection device which comprises a fastening mechanism arranged on a cylinder body of an oil cylinder, wherein a sliding rail extending along the axial direction of the oil cylinder is arranged on the fastening mechanism, a protection mechanism is arranged on the sliding rail in a sliding manner, a piston rod of the oil cylinder is positioned in the protection mechanism, and the protection mechanism is connected with the piston rod.

Inventors

• SHANG YANHONG
• LIU CHANGZHI
• Zhang Zunshan
• LIU YONGYI

Assignees

• 山东锐驰机械有限公司

Dates

Publication Date

20260512

Application Date

20250514

Claims (8)

1. 1. The oil cylinder piston rod extending protection device is characterized by comprising a fastening mechanism (2) arranged on a cylinder body (101) of an oil cylinder (1), wherein a sliding rail (3) extending along the axial direction of the oil cylinder (1) is arranged on the fastening mechanism (2), a protection mechanism (4) is arranged on the sliding rail (3) in a sliding manner, a piston rod (102) of the oil cylinder (1) is positioned in the protection mechanism (4), and the protection mechanism (4) is connected with the piston rod (102).
2. 2. The cylinder piston rod extension protection device according to claim 1, wherein the protection mechanism (4) comprises a plurality of sleeve plates (401) extending along the axial direction of the cylinder (1) and arranged on the sliding rail (3) in a sliding mode, connecting pieces (402) sliding along the direction perpendicular to the axial direction of the sleeve plates (401) are arranged on the sleeve plates (401), and the adjacent sleeve plates (401) are connected through the connecting pieces (402).
3. 3. The cylinder piston rod extension protection device according to claim 1, wherein the fastening mechanism (2) comprises oppositely arranged fastening plates (201), the cylinder body (101) is located between the two fastening plates (201), and the two fastening plates (201) are fixedly connected through a fastening piece A (202).
4. 4. The cylinder piston rod extension protection device according to claim 3, wherein the fastening plate (201) comprises a plurality of fastening strips (2011) hinged in sequence, and two ends of the fastening plate (201) are respectively hinged with fastening blocks (2012) matched with the fastening pieces A (202).
5. 5. The cylinder piston rod extension protection device according to claim 4, wherein the fastening strip (2011) is hinged with an anti-slip block (203), and the anti-slip block (203) is provided with a flexible anti-slip pad (204).
6. 6. The cylinder piston rod extension protection device according to claim 1, wherein a limiting block A (5) and a limiting block B (6) are arranged on the sliding rail (3), and the limiting block A (5) and the limiting block B (6) are respectively positioned at two ends of the cylinder body (101).
7. 7. The cylinder piston rod extension protection device according to claim 6, wherein the limiting block B (6) is axially and slidably arranged on the sliding rail (3) along the cylinder (1), and the limiting block B (6) is connected with the sliding rail (3) through a fastening piece B (7).
8. 8. The cylinder piston rod extension protector according to claim 2, wherein the sleeve plate (401) is provided with a long hole (4011) extending perpendicular to the axial direction of the sleeve plate (401), and the connecting piece (402) is connected with the sleeve plate (401) by a fastener C (403) penetrating through the long hole (4011).

Description

Protection device for extending out of cylinder piston rod Technical Field The utility model relates to the technical field of hydraulic cylinders, in particular to a cylinder piston rod extending protection device. Background The development of the hydraulic industry in China has a considerable production strength and technical level, and can basically meet the general requirements of economic development, wherein the matching rate of major complete equipment reaches over 60%, especially the rapid growth of the downstream industry in the last 10 years, the growth of the hydraulic industry is positively promoted, an oil cylinder is one of the most mature products in the hydraulic products in China, the industry keeps the rapid growth for many years, a relatively mature supply and demand chain is formed, and the hydraulic industry has a relatively large market scale. The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation, can avoid a speed reducer when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines. The hydraulic oil cylinder mainly comprises four types of piston type, plunger type, telescopic type and swing type according to the structural form, the working principle is that the pressure of liquid is utilized to generate mechanical motion, the force and the speed of different degrees are realized by adjusting the pressure of the oil liquid, and the use field of the hydraulic oil cylinder is very wide and mainly comprises engineering machinery, metallurgy, mining, building construction and other industries. In industries such as engineering machinery, metallurgy, mining, construction and the like, a hydraulic cylinder is used as an important executive component and is widely applied to various devices. However, during extension of the cylinder rod, the piston rod is easily damaged by the external environment due to lack of an effective protection device, thereby affecting the normal operation and service life of the cylinder. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the cylinder piston rod extending protection device which is simple, efficient, safe, reliable and convenient to operate, wherein the slide rail and the protection mechanism are arranged on the cylinder body of the cylinder through the fastening mechanism, and the protection mechanism synchronously moves along with the piston rod to protect the piston rod. The utility model provides an oil cylinder piston rod extending protection device, which comprises a fastening mechanism arranged on a cylinder body of an oil cylinder, wherein a sliding rail extending along the axial direction of the oil cylinder is arranged on the fastening mechanism, the sliding rail is provided with a protection mechanism in a sliding manner, a piston rod of the oil cylinder is positioned in the protection mechanism, the protection mechanism is connected with the piston rod, the sliding rail and the protection mechanism are arranged on the cylinder body of the oil cylinder through the fastening mechanism, and the protection mechanism synchronously moves along with the piston rod to protect the piston rod. The oil cylinder protection device is characterized in that the protection mechanism comprises a plurality of sleeve plates which extend along the axial direction of the oil cylinder and are arranged on the sliding rail in a sliding mode, connecting pieces which slide along the axial direction perpendicular to the sleeve plates are arranged on the sleeve plates, adjacent sleeve plates are connected through the connecting pieces, and the size of the protection mechanism is adjusted through the connecting pieces which slide on the sleeve plates, so that the protection mechanism is adapted to the oil cylinders with different diameters. The fastening mechanism comprises fastening plates which are oppositely arranged, the cylinder body is positioned between the two fastening plates, the two fastening plates are fixedly connected through the fastening piece A, and the size of the clamping space is adjusted according to the diameter of the cylinder body through the oppositely arranged fastening plates, so that the protection device can be applied to cylinders with different sizes. The fastening plate comprises a plurality of fastening strips which are hinged in sequence, two ends of the fastening plate are respectively hinged with fastening blocks which are matched with the fastening pieces A, and the fastening strips which are hinged in sequence are matched with the outer walls of the cylinder bodies with different diameters, so that the clamping stability of the fastening mechanism is improved. The anti-slip block is hinged to the fastening strip, the f