Hydraulic oil cylinder with high buffering performance
By introducing structures such as buffer springs, dampers, exhaust fans, and air guide fans into the hydraulic cylinder, the problems of temperature rise and stability caused by friction and resistance in the hydraulic cylinder are solved, achieving high buffering performance and stability.
Patent Information
- Application Number
- CN202421236421.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During operation, hydraulic cylinders experience temperature increases due to friction and resistance, affecting stability and dimensional changes. Existing technologies struggle to effectively buffer and dissipate heat.
A hydraulic cylinder was designed, comprising a buffer spring, a damper, an exhaust fan, and a duct fan. The buffer spring reduces impact, the damper prevents repeated bouncing, the exhaust fan and duct fan dissipate heat, and a dust cover prevents dust from entering, thus maintaining stability.
It effectively buffers shocks and vibrations, dissipates heat quickly, prevents temperature rise, maintains the stability and high buffering performance of the hydraulic cylinder, and reduces the impact of dust.
Smart Images
Figure CN222315538U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with high buffering performance. Background Art
[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy. Its main function is to generate linear motion. A hydraulic cylinder is usually composed of a cylinder body, a piston, a piston rod, a seal, hydraulic oil and other components. The hydraulic cylinder pushes the piston forward or backward through hydraulic pressure, thereby generating a linear thrust or pull, which is used to drive various mechanical equipment to move and achieve positioning and control of mechanical equipment. In addition, the hydraulic cylinder is suitable for various harsh working environments, such as high temperature, high pressure or corrosive media, and has good durability and reliability.
[0003] The hydraulic cylinder provides hydraulic energy through the hydraulic system, and the pressure generated by the hydraulic oil in the cylinder drives the piston rod to move linearly. When the hydraulic cylinder is working, friction will occur between the piston rod and the cylinder, and the hydraulic oil will also encounter resistance during the flow. These frictions and resistances will cause part of the mechanical energy to be converted into heat energy, causing the temperature inside the hydraulic cylinder to rise. The increase in temperature will affect the metal and non-metal materials in the utility model, causing changes in size due to thermal expansion, thereby affecting the stability of the utility model. Summary of the invention
[0004] The purpose of the utility model is to provide a hydraulic cylinder with high buffering performance to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic cylinder with high buffering performance, comprising a cylinder body and a piston rod, the piston rod is installed inside the cylinder body, a mounting cover is connected to the outside of the cylinder body, and a connecting ring is bonded at the opening of the mounting cover, a slide groove and a first ventilation groove are sequentially provided on the inner side of the mounting cover, a first ventilation groove and a second ventilation groove are sequentially provided on the inside of the mounting cover, and the first ventilation groove is connected to the first filter screen by a fastening bolt, a first sealing gasket is bonded to a side of the first filter screen close to the first ventilation groove, the second ventilation groove is connected to the second filter screen by a fastening bolt, and a second sealing gasket is bonded to a side of the second filter screen close to the second ventilation groove, an exhaust fan is installed on one side of the second ventilation groove, and an air guide fan is installed on the lower side of the ventilation plate of the cylinder body.
[0006] Preferably, the slide groove is connected to the connecting plate, and the connecting plate is fixed to the oil cylinder body, a connecting pad is bonded to the surface of the connecting plate, and a connecting cover is fixed to the oil cylinder body below the connecting plate.
[0007] Preferably, a second ventilation groove is provided inside the connecting cover, and a buffer spring is sleeved on the inner side of the connecting cover of the oil cylinder body, and the bottom of the oil cylinder body is fixed to the movable rod of the damper.
[0008] Preferably, a ventilation plate is connected to the lower side of the damper, and the ventilation plate is fixed to the mounting cover, and both ends of the buffer spring are respectively fixed to the connecting cover and the ventilation plate.
[0009] Preferably, a dust cover is provided on the outer side of the piston rod, and connecting rings are respectively fixed on both sides of the dust cover, and limiting bolts penetrate the interior of the connecting rings.
[0010] Preferably, a side of the oil cylinder body close to the limiting bolt and a side of the piston rod close to the limiting bolt are respectively provided with limiting grooves, and the limiting bolt is connected to the limiting grooves.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The utility model uses the hydraulic energy provided by the hydraulic system and the pressure generated by the hydraulic oil in the oil cylinder body to drive the piston rod to perform linear motion. By setting a buffer spring, the impact and vibration generated during the working process of the utility model can be contracted and buffered. By installing a damper, the buffer spring can be prevented from repeatedly bouncing, thereby enhancing the buffering performance of the utility model. At the same time, the exhaust fan and the air guide fan are started, so that the low-temperature air from the outside enters the interior of the installation cover through the first air permeable groove. The airflow generated by the air guide fan takes away the heat inside the installation cover. At the same time, the exhaust fan can quickly discharge the heat inside the installation cover, thereby reducing the temperature increase rate of the utility model, so that the metal and non-metal materials in the utility model are not easy to change in size due to thermal expansion, and will not affect the stability of the utility model, so that the utility model can maintain high buffering performance;
[0013] 2. When the utility model is not in use, the dust cover is sleeved on the piston rod, and the limiting bolts are respectively passed through the two connecting rings and the limiting grooves for rotational docking, so that the dust cover is restricted to the outside of the piston rod. When the piston rod moves linearly, the dust cover is extended with the piston rod, making it difficult for dust particles to enter the sealing system of the utility model through the gap between the cylinder body and the piston rod, thereby reducing the impact on the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;
[0016] Figure 2 It is a front view cross-sectional structural diagram of the first ventilation groove and the connecting cover of the utility model;
[0017] Figure 3 It is a front view cross-sectional structural schematic diagram of the second filter screen and the exhaust fan of the utility model;
[0018] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0019] Figure 5 It is a front view cross-sectional structural schematic diagram of the dust cover and the limiting bolt of the utility model.
[0020] In the figure: 1. Cylinder body; 101. Piston rod; 2. Mounting cover; 201. Connecting ring; 202. Slide groove; 203. Connecting plate; 204. Connecting pad; 205. First ventilation groove; 206. Connecting cover; 207. Second ventilation groove; 208. Buffer spring; 209. Damper; 210. First ventilation groove; 211. Second ventilation groove; 212. First filter; 2121. First sealing gasket; 213. Second filter; 2131. Second sealing gasket; 214. Exhaust fan; 215. Ventilation plate; 216. Air guide fan; 3. Dust cover; 301. Connecting ring; 302. Limit bolt; 303. Limit groove. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-Figure 4The utility model provides a technical solution: a hydraulic cylinder with high buffering performance, including a cylinder body 1 and a piston rod 101, the piston rod 101 is installed inside the cylinder body 1, the outer side of the cylinder body 1 is connected with a mounting cover 2, and the opening of the mounting cover 2 is bonded with a connecting ring 201, the inner side of the mounting cover 2 is sequentially provided with a slide groove 202 and a first ventilation groove 205, the slide groove 202 is connected with a connecting plate 203, and the connecting plate 203 is fixed to the cylinder body 1, and the surface of the connecting plate 203 is bonded with a connecting ring 201. The connecting pad 204 is provided, and the connecting cover 206 is fixed to the main body 1 of the oil cylinder below the connecting plate 203. The connecting cover 206 is provided with a second ventilation groove 207. The main body 1 of the oil cylinder is sleeved with a buffer spring 208 on the inner side of the connecting cover 206. The bottom of the main body 1 of the oil cylinder is fixed to the movable rod of the damper 209. The lower side of the damper 209 is connected to a ventilation plate 215, and the ventilation plate 215 is fixed to the mounting cover 2. The two ends of the buffer spring 208 are respectively fixed to the connecting cover 206 and the ventilation plate 215. The mounting cover 2 A first air permeable groove 210 and a second air permeable groove 211 are sequentially provided inside the housing, and the first air permeable groove 210 is connected to the first filter screen 212 by fastening bolts, a first sealing gasket 2121 is bonded to a side of the first filter screen 212 close to the first air permeable groove 210, the second air permeable groove 211 is connected to the second filter screen 213 by fastening bolts, and a second sealing gasket 2131 is bonded to a side of the second filter screen 213 close to the second air permeable groove 211, and an exhaust fan 214 is installed on one side of the second air permeable groove 211. An air guide fan 216 is installed on the lower side of the ventilation plate 215 of the cylinder body 1. The connecting ring 201 and the connecting pad 204 are made of rubber and have a certain deformation ability. The connecting ring 201 is squeezed with the cylinder body 1, and the connecting pad 204 is squeezed with the slide groove 202. The model of the damper 209 is ALJ-01. The first sealing gasket 2121 and the second sealing gasket 2131 are made of rubber. The first air permeable groove 210 is squeezed with the first sealing gasket 2121, and the second air permeable groove 211 is squeezed with the second sealing gasket 2131.
[0023] In specific implementation, according to Figure 1-Figure 4 The utility model uses the hydraulic energy provided by the hydraulic system and the pressure generated by the hydraulic oil in the cylinder body 1 to drive the piston rod 101 to perform linear motion. When the utility model is working, impact and vibration will be generated. Since the connecting ring 201 and the connecting pad 204 are made of rubber and have a certain deformation ability, the connecting ring 201 is squeezed with the cylinder body 1 and the connecting pad 204 is squeezed with the slide groove 202, so that the cylinder body 1 can move and buffer, reduce the vibration of the cylinder body 1, and at the same time, the buffer spring 208 performs contraction buffering. By installing the damper 209, the buffer spring 208 can be prevented from repeatedly bouncing, thereby enhancing the buffering performance of the utility model. At the same time, the exhaust fan 214 and the air guide fan 216 are started. When the air guide fan 216 is working, it drives the air flow inside the installation cover 2 to flow (the air flow direction is as shown in FIG. 2 ). Figure 1 As shown by the red arrow in the middle, the low-temperature air from the outside enters the interior of the mounting cover 2 through the first ventilation groove 210; since the first sealing gasket 2121 is made of rubber and has a certain deformation ability, and the first ventilation groove 210 and the first sealing gasket 2121 are squeezed, the first filter 212 can filter the low-temperature air from the outside (the flow direction of the low-temperature air from the outside is as shown in FIG. Figure 1 214, the exhaust fan 214 can exhaust the heat in the installation cover 2 through the second ventilation groove 211 (the exhaust direction of the exhaust fan 214 is as shown in FIG. 215 ). Figure 1 The exhaust fan 214 can quickly discharge the heat inside the mounting cover 2, thereby slowing down the temperature increase rate inside the utility model, making it difficult for the metal and non-metal materials in the utility model to change size due to thermal expansion, and will not affect the stability of the utility model, so that the utility model can maintain high buffering performance.
[0024] See also Figure 1 and Figure 5 A dust cover 3 is provided on the outside of the piston rod 101, and connecting rings 301 are fixed on both sides of the dust cover 3, and a limiting bolt 302 passes through the inside of the connecting ring 301. A limiting groove 303 is respectively provided on the side of the cylinder body 1 close to the limiting bolt 302 and the side of the piston rod 101 close to the limiting bolt 302, and the limiting bolt 302 is connected to the limiting groove 303. The dust cover 3 is made of deformable plastic material, and the limiting bolt 302 is threadedly connected to the limiting groove 303.
[0025] In specific implementation, according to Figure 1 and Figure 5 When the utility model is used, the dust cover 3 is sleeved with the piston rod 101, and the limiting bolts 302 are respectively passed through the two connecting rings 301 and the limiting grooves 303 for rotational docking. The limiting bolts 302 are threadedly connected with the limiting grooves 303, so that the dust cover 3 is restricted to the outside of the piston rod 101. When the piston rod 101 moves linearly, the dust cover 3 adopts a deformable plastic material so that the dust cover 3 extends with the piston rod 101, making it difficult for dust particles to enter the sealing system of the utility model through the gap between the cylinder body 1 and the piston rod 101, thereby reducing the impact on the utility model.
[0026] In summary, the utility model drives the piston rod 101 to move linearly through the hydraulic energy provided by the hydraulic system and the pressure generated by the hydraulic oil in the oil cylinder body 1. When the utility model is working, the exhaust fan 214 and the air guide fan 216 are started at the same time. The airflow generated by the air guide fan 216 takes away the heat inside the mounting cover 2. At the same time, the exhaust fan 214 works to quickly discharge the heat inside the mounting cover 2, thereby slowing down the temperature increase rate inside the utility model, so that the utility model can maintain high buffering performance; at the same time, the dust cover 3 is restricted to the outside of the piston rod 101, so that dust particles are not easy to enter the sealing system of the utility model through the gap between the oil cylinder body 1 and the piston rod 101, thereby reducing the impact on the utility model. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.
[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A hydraulic cylinder with high buffering performance, comprising a cylinder body (1) and a piston rod (101), characterized in that: A piston rod (101) is installed inside the oil cylinder body (1), a mounting cover (2) is butted against the outside of the oil cylinder body (1), and a connecting ring (201) is bonded to the opening of the mounting cover (2), a sliding groove (202) and a first ventilation groove (205) are sequentially provided on the inside of the mounting cover (2), a first ventilation groove (210) and a second ventilation groove (211) are sequentially provided inside the mounting cover (2), and the first ventilation groove (210) is connected to the first filter screen (212) by means of a fastening bolt, A first sealing gasket (2121) is bonded to a side of the first filter screen (212) close to the first air permeable groove (210); the second air permeable groove (211) is connected to the second filter screen (213) by means of a fastening bolt, and a second sealing gasket (2131) is bonded to a side of the second filter screen (213) close to the second air permeable groove (211); an exhaust fan (214) is installed on one side of the second air permeable groove (211); and an air guide fan (216) is installed on the lower side of the ventilation plate (215) of the oil cylinder body (1).
2. A hydraulic cylinder with high buffering performance according to claim 1, characterized in that: The slide groove (202) is connected to the connecting plate (203), and the connecting plate (203) is fixed to the oil cylinder body (1). A connecting pad (204) is bonded to the surface of the connecting plate (203), and a connecting cover (206) is fixed to the oil cylinder body (1) below the connecting plate (203).
3. A hydraulic cylinder with high buffering performance according to claim 2, characterized in that: A second ventilation groove (207) is provided inside the connecting cover (206), and a buffer spring (208) is sleeved on the inner side of the connecting cover (206) of the oil cylinder body (1), and the bottom of the oil cylinder body (1) is fixed to the movable rod of the damper (209).
4. A hydraulic cylinder with high buffering performance according to claim 3, characterized in that: The lower side of the damper (209) is connected to a ventilation plate (215), and the ventilation plate (215) is fixed to the mounting cover (2), and the two ends of the buffer spring (208) are respectively fixed to the connecting cover (206) and the ventilation plate (215).
5. The hydraulic cylinder with high buffering performance according to claim 1, characterized in that: A dust cover (3) is provided on the outer side of the piston rod (101), and connecting rings (301) are respectively fixed on both sides of the dust cover (3), and a limiting bolt (302) passes through the interior of the connecting ring (301).
6. A hydraulic cylinder with high buffering performance according to claim 5, characterized in that: A side of the oil cylinder body (1) close to the limiting bolt (302) and a side of the piston rod (101) close to the limiting bolt (302) are respectively provided with limiting grooves (303), and the limiting bolt (302) is connected to the limiting grooves (303).