Hydraulic oil cylinder with buffer structure

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, and provides a hydraulic oil cylinder with a buffering structure, which comprises a cylinder body, a piston arranged in the cylinder body in a sliding manner, a plurality of elastic plates, a supporting plate, a supporting mechanism and a jacking mechanism, the plurality of elastic plates are fixedly connected in the cylinder body, the supporting plate is fixedly connected at the top end of the elastic plate, and the supporting mechanism is fixedly connected at the top end of the supporting plate. The supporting mechanism is arranged on the supporting plate and used for buffering a piston, the jacking mechanism is arranged in the cylinder body and used for supporting the piston, and the supporting mechanism comprises a supporting wheel and a supporting spring. The normal use and the service life of the oil cylinder are influenced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder with a buffer structure. Background Technology

[0002] A hydraulic cylinder is generally composed of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and an exhaust device. Its function is to convert hydraulic energy into mechanical energy, and it is an energy conversion device that converts hydraulic energy into reciprocating linear motion mechanical energy.

[0003] When existing hydraulic cylinders have large moving parts and high moving speeds, they have a large momentum due to the large inertial force. When the piston moves to the end of the cylinder, if there is no buffer device, it is easy to have a mechanical collision with the end cover, which can easily lead to damage to the piston, piston rod, cylinder, end cover and other components of the cylinder, affecting the normal use and life of the cylinder. Utility Model Content

[0004] This invention proposes a hydraulic cylinder with a buffer structure, which solves the problem in the prior art where mechanical collision between the piston and the end cap easily leads to damage to components such as the piston, piston rod, cylinder barrel, and end cap, affecting the normal use and lifespan of the hydraulic cylinder.

[0005] The technical solution of this utility model is as follows: A hydraulic cylinder with a buffer structure includes a cylinder body, in which a piston is slidably disposed, and also includes: an elastic plate, a support plate, a support mechanism and a lifting mechanism;

[0006] The elastic plate is provided in multiple ways, and all of the multiple elastic plates are fixedly connected to the cylinder body;

[0007] The support plate is fixedly connected to the top of the elastic plate;

[0008] The support mechanism is mounted on the support plate and is used to cushion the piston;

[0009] The lifting mechanism is located inside the cylinder and is used to support the piston.

[0010] Preferably, the support mechanism includes: a support wheel and a support spring;

[0011] The support wheels are provided in multiple ways, and all of the support wheels are rotatably connected to the top of the tray;

[0012] The two ends of the support spring are respectively between the inner wall of the cylinder and the support plate.

[0013] Furthermore, the lifting mechanism includes: a slide bar, a lifting rod, a moving assembly, and a transmission assembly;

[0014] The slide rod is slidably connected to the inner wall of the cylinder;

[0015] The lifting rod is fixedly connected to the top of the sliding rod;

[0016] The movable component is disposed inside the cylinder and is used to push the slide bar upward;

[0017] The transmission assembly is mounted on the pallet and is used to move the pushing and moving assembly.

[0018] Furthermore, the moving component includes: a trapezoidal block and a rotating wheel;

[0019] The trapezoidal block is slidably connected to the inner bottom wall of the cylinder;

[0020] The rotating wheel is rotatably connected to one end of the slide rod, and the rotating wheel is in contact with the trapezoidal block.

[0021] As a further embodiment of this application, the transmission assembly includes: a transmission rod and a transmission wheel;

[0022] The transmission rod is fixedly connected to the bottom end of the support plate;

[0023] The transmission wheel is rotatably connected to the bottom end of the transmission rod, and the transmission wheel is in contact with the trapezoidal block.

[0024] As a further embodiment of this application, a slide rail is fixedly connected to the inner bottom wall of the cylinder, and a slide groove is provided on the trapezoidal block, with the slide rail slidably connected in the slide groove.

[0025] The working principle and beneficial effects of this utility model are as follows:

[0026] In this invention, the cooperation between the elastic plate, the support plate, the support mechanism and the lifting mechanism facilitates the support and buffering of the piston during movement, effectively preventing mechanical collisions between the piston and the cylinder and improving the service life of the hydraulic cylinder. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0030] Figure 3 This is a schematic diagram of the support mechanism of this utility model;

[0031] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model.

[0032] In the diagram: 1. Cylinder; 2. Piston; 3. Elastic plate; 4. Support plate; 5. Support wheel; 6. Support spring; 7. Slide rod; 8. Lifting rod; 9. Trapezoidal block; 10. Rotating wheel; 11. Transmission rod; 12. Transmission wheel; 13. Slide rail. Detailed Implementation

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0034] like Figures 1-4 As shown, this embodiment proposes a hydraulic cylinder with a buffer structure, including a cylinder body 1, a piston 2 slidably disposed inside the cylinder body 1, and further including: an elastic plate 3, a support plate 4, a support mechanism, and a lifting mechanism. Multiple elastic plates 3 are provided, and all multiple elastic plates 3 are fixedly connected inside the cylinder body 1. The support plate 4 is fixedly connected to the top of the elastic plate 3. Through the cooperation between the elastic plate 3, the support plate 4, the support mechanism, and the lifting mechanism, it is convenient to support and buffer the piston 2 when it moves, effectively preventing mechanical collision between the piston 2 and the cylinder body 1, and improving the service life of the hydraulic cylinder.

[0035] The support mechanism is set on the support plate 4 to buffer the piston 2. The support mechanism includes a support wheel 5 and a support spring 6. There are multiple support wheels 5, and all of them are rotatably connected to the top of the support plate 4. The two ends of the support spring 6 are respectively between the inner wall of the cylinder 1 and the support plate 4. Specifically, when the piston 2 descends and contacts the support wheel 5, it is supported and buffered by the elastic plate 3 and the support spring 6, thereby slowing down the descent speed of the piston 2.

[0036] The lifting mechanism is located inside the cylinder 1 and supports the piston 2. The lifting mechanism includes a slide rod 7, a lifting rod 8, a moving assembly, and a transmission assembly. The slide rod 7 is slidably connected to the inner wall of the cylinder 1, and the lifting rod 8 is fixedly connected to the top of the slide rod 7. The moving assembly is located inside the cylinder 1 and is used to push the slide rod 7 upwards. The transmission assembly is located on the support plate 4 and is used to move the moving assembly. The moving assembly includes a trapezoidal block 9 and a rotating wheel 10. A slide rail 13 is fixedly connected to the inner bottom wall of the cylinder 1. A groove is formed on the trapezoidal block 9, and the slide rail 13 is slidably connected to the groove. The trapezoidal block 9 is slidably connected to the inner bottom of the cylinder 1. On the wall, a rotating wheel 10 is rotatably connected to one end of a sliding rod 7. The rotating wheel 10 contacts the trapezoidal block 9. The transmission assembly includes a transmission rod 11 and a transmission wheel 12. The transmission rod 11 is fixedly connected to the bottom end of the support plate 4, and the transmission wheel 12 is rotatably connected to the bottom end of the transmission rod 11. The transmission wheel 12 contacts the trapezoidal block 9. Specifically, when the support plate 4 is pressed down, it drives the transmission rod 11 to descend. When the transmission rod 11 descends, it drives the transmission wheel 12 to abut against the trapezoidal block 9, thereby pushing the trapezoidal block 9 to move. When the trapezoidal block 9 moves, it contacts the rotating wheel 10 and pushes the sliding rod 7 and the lifting rod 8 to rise, thereby providing support when the piston 2 is buffered.

[0037] In this embodiment, when the piston 2 descends and contacts the support wheel 5, it is supported and buffered by the elastic plate 3 and the support spring 6, thereby slowing down the descent speed of the piston 2. When the support plate 4 is pressed down, it drives the transmission rod 11 to descend. When the transmission rod 11 descends, it drives the transmission wheel 12 to abut against the trapezoidal block 9, thereby pushing the trapezoidal block 9 to move. When the trapezoidal block 9 moves, it contacts the rotating wheel 10 and pushes the sliding rod 7 and the lifting rod 8 to rise, thereby providing support when the piston 2 is buffered.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder with a buffer structure, comprising a cylinder body (1), wherein a piston (2) is slidably disposed within the cylinder body (1), characterized in that, Also includes: Elastic plate (3), multiple elastic plates (3) are provided, and multiple elastic plates (3) are fixedly connected inside the cylinder body (1); The support plate (4) is fixedly connected to the top of the elastic plate (3); A support mechanism is provided on the tray (4) for cushioning the piston (2); A lifting mechanism is provided inside the cylinder (1) to support the piston (2).

2. A hydraulic cylinder with a buffer structure according to claim 1, characterized in that, The supporting structure includes: Support wheels (5), multiple support wheels (5) are provided, and multiple support wheels (5) are rotatably connected to the top of the tray (4); Support spring (6), the two ends of which are respectively between the inner wall of the cylinder (1) and the support plate (4).

3. A hydraulic cylinder with a buffer structure according to claim 2, characterized in that, The lifting mechanism includes: A slide rod (7) is slidably connected to the inner wall of the cylinder body (1); A lifting rod (8) is fixedly connected to the top of the slide rod (7); A movable component, disposed within the cylinder (1), is used to push the slide bar (7) upward; A transmission assembly is disposed on the pallet (4) and is used to move the push-moving assembly.

4. A hydraulic cylinder with a buffer structure according to claim 3, characterized in that, The moving component includes: Trapezoidal block (9), which is slidably connected to the inner bottom wall of the cylinder body (1); Rotating wheel (10) is rotatably connected to one end of the slide bar (7), and the rotating wheel (10) is in contact with the trapezoidal block (9).

5. A hydraulic cylinder with a buffer structure according to claim 4, characterized in that, The transmission assembly includes: A transmission rod (11) is fixedly connected to the bottom end of the support plate (4); The transmission wheel (12) is rotatably connected to the bottom end of the transmission rod (11), and the transmission wheel (12) is in contact with the trapezoidal block (9).

6. A hydraulic cylinder with a buffer structure according to claim 5, characterized in that, A slide rail (13) is fixedly connected to the inner bottom wall of the cylinder (1), and a slide groove is provided on the trapezoidal block (9), and the slide rail (13) is slidably connected in the slide groove.

Images