Damping type hydraulic oil cylinder

Abstract

The utility model discloses a damping type hydraulic oil cylinder which comprises a cylinder barrel, a piston rod is arranged on the outer surface of the upper end of the cylinder barrel, a damping mechanism is arranged on the outer surface of the upper end of the piston rod, and a joint bearing is arranged on the outer surface of the upper end of the damping mechanism. The damping mechanism comprises a connecting base, first grooves, second grooves, limiting grooves, springs, dampers and limiting blocks, the connecting base is located at the upper end of the piston rod, the first grooves are formed in the outer surface of the lower end of the connecting base, and the two sets of second grooves are formed in the two sides of the outer surface of the upper end of the piston rod correspondingly; the damper is located in the second groove and located between the piston rod and the connecting base, and the two sets of limiting blocks are located at the upper ends of the two sides of the outer wall of the piston rod correspondingly. The damping type hydraulic oil cylinder has the damping and buffering functions, the connecting base can be conveniently limited and moved, the service life is prolonged, and better use prospects are brought.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic oil cylinders, in particular to a shock-absorbing hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). One end of the existing piston rod is connected to the spherical bearing. When the spherical bearing is hit or pulled, it vibrates, which will be transmitted to the piston rod, and then transmitted to the piston through the piston rod. The piston and the inner wall of the cylinder are subjected to force, which will affect the sealing of the piston for a long time, and then affect the operation effect of the hydraulic cylinder, shorten the service life of the hydraulic cylinder, and bring certain adverse effects to people's use process. For this reason, we propose a shock-absorbing hydraulic cylinder. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a shock-absorbing hydraulic cylinder, which has the advantages of being able to have a shock-absorbing and buffering effect, facilitating the limited movement of the connecting seat, and increasing the service life, and can effectively solve the problems in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shock-absorbing hydraulic cylinder, including a cylinder barrel, a piston rod is arranged on the upper outer surface of the cylinder barrel, a shock-absorbing mechanism is arranged on the upper outer surface of the piston rod, a joint bearing is arranged on the upper outer surface of the shock-absorbing mechanism, the shock-absorbing mechanism includes a connecting seat, a first groove, a second groove, a limit groove, a spring, a damper and a limit block, the connecting seat is located at the upper end of the piston rod, and the first groove is opened on the lower outer surface of the connecting seat.

[0007] Preferably, two groups of the second grooves are respectively opened on both sides of the outer surface of the upper end of the piston rod, the damper is located inside the second groove, and the damper is located between the piston rod and the connecting seat.

[0008] Preferably, the two groups of limit blocks are respectively located at the upper ends of the two sides of the outer wall of the piston rod, the two groups of limit grooves are respectively opened on the inner surfaces of the two sides of the connecting seat, and the spring is located between the piston rod and the connecting seat.

[0009] Preferably, the limiting block and the limiting groove are slidably connected.

[0010] Preferably, the seat is elastically connected to the piston rod via a spring, and the connecting seat is slidably connected to the piston rod via a first groove.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a shock-absorbing hydraulic cylinder, which has the following beneficial effects:

[0013] The shock-absorbing hydraulic oil cylinder can have a shock-absorbing and buffering effect, facilitates the limited movement of the connecting seat, and improves the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a shock-absorbing hydraulic cylinder.

[0015] Figure 2 This is a front view analysis diagram of a shock-absorbing hydraulic cylinder of the utility model.

[0016] Figure 3 The utility model is a structural diagram of a shock absorbing mechanism in a shock absorbing hydraulic cylinder.

[0017] In the figure: 1. cylinder; 2. piston rod; 3. spherical bearing; 4. shock absorbing mechanism; 5. connecting seat; 6. first groove; 7. second groove; 8. limit groove; 9. spring; 10. damper; 11. limit block. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] This embodiment is a shock-absorbing hydraulic cylinder.

[0020] like Figure 1-3 As shown, it includes a cylinder 1, a piston rod 2 is provided on the upper outer surface of the cylinder 1, a shock absorbing mechanism 4 is provided on the upper outer surface of the piston rod 2, a joint bearing 3 is provided on the upper outer surface of the shock absorbing mechanism 4, and the shock absorbing mechanism 4 includes a connecting seat 5, a first groove 6, a second groove 7, a limiting groove 8, a spring 9, a damper 10 and a limiting block 11. The connecting seat 5 is located at the upper end of the piston rod 2, and the first groove 6 is opened on the lower outer surface of the connecting seat 5.

[0021] Two groups of second grooves 7 are respectively opened on both sides of the outer surface of the upper end of the piston rod 2, the damper 10 is located inside the second groove 7, and the damper 10 is located between the piston rod 2 and the connecting seat 5; two groups of limit blocks 11 are respectively located at the upper ends of both sides of the outer wall of the piston rod 2, two groups of limit grooves 8 are respectively opened on both sides of the inner surface of the connecting seat 5, and the spring 9 is located between the piston rod 2 and the connecting seat 5; the limit block 11 and the limit groove 8 are slidably connected; the connecting seat 5 is elastically connected to the piston rod 2 through the spring 9, and the connecting seat 5 is slidably connected to the piston rod 2 through the first groove 6.

[0022] It should be noted that the utility model is a shock-absorbing hydraulic cylinder, in which the connecting seat 5 and the piston rod 2 are connected by a spring 9 and a damper 10. When the joint bearing 3 is hit or pulled and vibrates, the spring 9 and the damper 10 provide shock absorption and buffering while driving the connecting seat 5 to slide along the piston rod 2 through the first groove 6, and the limit block 11 slides along the limit groove 8, which can have a shock-absorbing and buffering effect, facilitate the limiting movement of the connecting seat 5, and improve the service life.

[0023] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A shock-absorbing hydraulic cylinder, comprising a cylinder barrel (1), characterized in that: The upper outer surface of the cylinder (1) is provided with a piston rod (2), the upper outer surface of the piston rod (2) is provided with a shock absorbing mechanism (4), the upper outer surface of the shock absorbing mechanism (4) is provided with a joint bearing (3), the shock absorbing mechanism (4) comprises a connecting seat (5), a first groove (6), a second groove (7), a limiting groove (8), a spring (9), a damper (10) and a limiting block (11), the connecting seat (5) is located at the upper end of the piston rod (2), and the first groove (6) is opened on the lower outer surface of the connecting seat (5).

2. A shock-absorbing hydraulic cylinder according to claim 1, characterized in that: The two groups of the second grooves (7) are respectively opened on both sides of the outer surface of the upper end of the piston rod (2); the damper (10) is located inside the second grooves (7); and the damper (10) is located between the piston rod (2) and the connecting seat (5).

3. A shock-absorbing hydraulic cylinder according to claim 2, characterized in that: The two groups of limit blocks (11) are respectively located at the upper ends of the outer walls of the piston rod (2), the two groups of limit grooves (8) are respectively opened on the inner surfaces of the connecting seat (5), and the spring (9) is located between the piston rod (2) and the connecting seat (5).

4. A shock-absorbing hydraulic cylinder according to claim 3, characterized in that: The limiting block (11) and the limiting groove (8) are slidably connected.

5. A shock-absorbing hydraulic cylinder according to claim 4, characterized in that: The seat is elastically connected to the piston rod (2) via a spring (9), and the connecting seat (5) is slidably connected to the piston rod (2) via a first groove (6).

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