Hydraulic oil cylinder with protective structure

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with a protection structure, which comprises a hydraulic oil cylinder, a protection component is fixedly mounted on the outer side surface of the hydraulic oil cylinder, and the protection component comprises two fixing plates symmetrically mounted on the outer side of the hydraulic oil cylinder in a sliding manner. An annular sliding rail is fixedly installed on the surface of one side of the fixing plate. According to the hydraulic cylinder protection device, the protection net is arranged on the outer side of the hydraulic cylinder to block flying stones, when the flying stones are large, the flying stones impact the protection net to enable the protection net to rotate, the flying stones are rotated out, damage to the hydraulic cylinder caused by the fact that the flying stones directly impact the hydraulic cylinder is avoided, potential safety hazards are reduced, and the protection effect on the hydraulic cylinder is improved; and before the piston rod is retracted into the cylinder body, dust and impurities adhered to the surface of the piston rod are scraped off, and the scraped dust and impurities are moved out in a specific direction, so that the dust and the impurities are prevented from being adhered to the surface of the piston rod again when the piston rod extends out, and the cleaning effect 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] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] When the existing hydraulic cylinder is in use, there is no corresponding protective structure on the outside of the hydraulic cylinder. When used in some places where flying stones are prone to occur, the flying stones will directly hit the hydraulic cylinder, and the hydraulic cylinder will be hit by a large external force and the cylinder body will be broken. The protection effect is poor. At the same time, when the hydraulic cylinder is damaged and exploded, metal fragments will fly and cause harm to the staff. In addition, when the surface of the piston rod of the hydraulic cylinder is deep, dust and impurities are easily adhered to the surface, which is scraped off by the sealing ring at one end of the hydraulic cylinder. The dust and impurities accumulate at one end of the hydraulic cylinder and are still attached to the surface of the piston rod when the piston rod is extended, making it inconvenient to clean them. Utility Model Content

[0004] The purpose of the present utility model is to provide a hydraulic cylinder with a protective structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A hydraulic cylinder with a protective structure includes a hydraulic cylinder, a protective component fixedly installed on the outer surface of the hydraulic cylinder, the protective component includes two fixed plates symmetrically slidably installed on the outer side of the hydraulic cylinder, an annular slide rail fixedly installed on one side of the fixed plate, a connecting plate movably provided on one side of the annular slide rail, a plurality of sliding rods fixedly installed at equal angles between the two connecting plates, a plurality of elastic arc plates fixedly installed at equal distances on the outer surface of the sliding rods, a protective net movably provided on the outer sides of the plurality of elastic arc plates, and a cleaning component fixedly installed on the other side surface of the fixed plate at the upper end.

[0007] Furthermore, a plurality of No. 1 sliders which are fixedly mounted at equal angles on the other side surface of the connecting plate and are in contact with the annular slide rail are also fixedly mounted at equal angles on the other side surface of the connecting plate and a plurality of No. 2 sliders which are in sliding contact with the annular slide rail are also fixedly mounted at equal angles on the other side surface of the connecting plate.

[0008] Furthermore, an arc-shaped reinforcement plate is symmetrically fixedly installed on the inner surface of the elastic arc-shaped plate.

[0009] Furthermore, a plurality of limiting holes are provided at equal angles on the upper end of the outer surface of the hydraulic cylinder, a plurality of threaded sleeves are fixedly installed at equal angles on the other side surface of a fixed plate, a bolt is screwed in the inside of the threaded sleeve, and the bolt passes through the threaded sleeve and is movably connected to the limiting hole.

[0010] Furthermore, the cleaning assembly includes a plurality of support rods fixedly mounted on the other side surface of the fixed plate, a mounting frame fixedly mounted between the support rods, and a conical cover plate fixedly mounted on the outer surface of the mounting frame.

[0011] Preferably, a gear ring is rotatably connected inside the installation frame, a gear meshing with the gear ring is rotatably connected inside the installation frame, a motor is fixedly mounted on one side surface of the installation frame, and the output end of the motor passes through the installation frame and is fixedly connected to the gear.

[0012] Preferably, a sealing ring is movably embedded in the inner surface of the gear ring, and a plurality of scrapers are fixedly installed at equal angles on one side surface of the gear ring.

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

[0014] 1. When smaller flying stones hit the protective net, the protective net deforms and squeezes the elastic arc plate to produce elastic deformation. The elastic arc plate is reinforced by the arc reinforcement plate, so that the elastic force pushes the protective net to reset, and the smaller flying stones are bounced away. Therefore, a protective net is set on the outside of the hydraulic cylinder to block the flying stones. When the flying stones are large, the flying stones hit the protective net. The sliding of the No. 1 slider and the annular slide rail makes the protective net rotate and rotates the flying stones out, avoiding the damage of the hydraulic cylinder caused by the direct impact of the flying stones, reducing safety hazards, and improving the protection effect of the hydraulic cylinder.

[0015] 2. When the piston rod of the hydraulic cylinder contracts, the sealing ring scrapes the surface of the piston rod, and the motor runs, causing the gear ring to drive the sealing ring to rotate. The dust and impurities scraped off by the sealing ring accumulate on its surface. At this time, the scraper rotates synchronously, scraping the accumulated dust and impurities onto the surface of the conical cover plate, allowing the dust and impurities to slide off. Thus, before the piston rod is retracted into the cylinder body, the dust and impurities adhering to its surface are scraped off, and the scraped dust and impurities are moved out in a specific direction to prevent the dust and impurities from re-attaching to the surface of the piston rod when the piston rod is extended, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall vertical cross-sectional structure of the utility model;

[0018] Figure 3This is a schematic diagram of the cross-sectional structure of the protective component in the utility model;

[0019] Figure 4 It is a schematic diagram of the side cross-section structure of the protection component and the cleaning component in the utility model;

[0020] Figure 5 It is a schematic diagram of the side sectional structure of the cleaning component in the utility model.

[0021] In the figure: 1. Hydraulic cylinder; 101. Limiting hole; 2. Protective assembly; 201. Fixed plate; 202. Annular slide rail; 203. Slider No. 1; 204. Connecting plate; 205. Sliding rod; 206. Elastic arc plate; 207. Arc reinforcement plate; 208. Protective net; 209. Slider No. 2; 3. Cleaning assembly; 301. Support rod; 302. Mounting frame; 303. Gear ring; 304. Gear; 305. Motor; 306. Sealing ring; 307. Conical cover plate; 308. Threaded sleeve; 309. Bolt; 4. Scraper. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a hydraulic cylinder with a protective structure includes a hydraulic cylinder 1, and a protective component 2 is fixedly installed on the outer surface of the hydraulic cylinder 1. The protective component 2 includes two fixed plates 201 symmetrically slidably installed on the outer side of the hydraulic cylinder 1, and an annular slide rail 202 is fixedly installed on the surface of one side of the fixed plate 201. A connecting plate 204 is movably provided on one side of the annular slide rail 202. A plurality of sliding rods 205 are fixedly installed at equal angles between the two connecting plates 204, and a plurality of elastic arc plates 206 are fixedly installed at equal distances on the outer surface of the sliding rods 205. A protective net 208 is movably provided on the outer side of the plurality of elastic arc plates 206, and a cleaning component 3 is fixedly installed on the other side surface of the fixed plate 201 at the upper end.

[0024] Specifically, the protective net 208 protects against smaller flying rocks and falling rocks. When there are larger flying rocks and falling rocks, the impact from a distance causes the protective net 208 to rotate, and the flying rocks and falling rocks are moved away by the rotation, preventing the flying rocks and falling rocks from directly hitting the hydraulic cylinder 1.

[0025] Example 1

[0026] like Figure 2As shown, in this embodiment, a plurality of limiting holes 101 are opened at equal angles at the upper end of the outer surface of the hydraulic cylinder 1, and a plurality of threaded sleeves 308 are fixedly installed at equal angles on the other side surface of a fixed plate 201, and a bolt 309 is screwed in the threaded sleeve 308, and the bolt 309 passes through the threaded sleeve 308 and is movably connected to the limiting hole 101.

[0027] In this embodiment, after the protection component 2 is installed on the outside of the hydraulic cylinder 1 , the bolt 309 is tightened so that one end of the bolt 309 abuts against the inside of the limiting hole 101 , thereby fixing the protection component 2 on the outside of the hydraulic cylinder 1 .

[0028] like Figure 1-4 As shown, in this embodiment, a plurality of No. 1 sliders 203 that are fixedly mounted at equal angles with the annular slide rail 202 on the other side surface of the connecting plate 204, and a plurality of No. 2 sliders 209 that are slidably fitted with the annular slide rail 202 are fixedly mounted at equal angles on the other side surface of the connecting plate 204; an arc-shaped reinforcement plate 207 is symmetrically fixedly mounted on the inner surface of the elastic arc plate 206.

[0029] During specific implementation, smaller flying stones hit the protective net 208, and the protective net 208 deforms and squeezes the elastic arc plate 206 to cause elastic deformation, and the elastic arc plate 206 is reinforced by the arc reinforcement plate 207, so that the elastic force pushes the protective net 208 to reset, and the smaller flying stones are bounced away, so that the flying stones are blocked by arranging the protective net 208 on the outside of the hydraulic cylinder 1. When the flying stones are large, the flying stones hit the protective net 208, and the sliding of the No. 1 slider 203 and the annular slide rail 202 causes the protective net 208 to rotate, and the flying stones are rotated out, thereby avoiding damage to the hydraulic cylinder 1 caused by the flying stones directly hitting the hydraulic cylinder 1, reducing safety hazards, and improving the protection effect of the hydraulic cylinder 1.

[0030] Example 2

[0031] On the basis of the first embodiment, in order to solve the problem that dust on the surface of the piston rod of the hydraulic oil cylinder 1 is easily accumulated at one end of the cylinder body.

[0032] like Figure 4 and Figure 5 As shown, in this embodiment, the cleaning component 3 includes a plurality of support rods 301 fixedly mounted on the other side surface of the fixed plate 201, a mounting frame 302 is fixedly mounted between the support rods 301, and a conical cover plate 307 is fixedly mounted on the outer surface of the mounting frame 302; a gear ring 303 is rotatably connected inside the mounting frame 302, and a gear 304 that meshes with the gear ring 303 is rotatably connected inside the mounting frame 302, a motor 305 is fixedly mounted on the surface of one side of the mounting frame 302, and the output end of the motor 305 passes through the mounting frame 302 and is fixedly connected to the gear 304; a sealing ring 306 is movably embedded in the inner surface of the gear ring 303, and a plurality of scrapers 4 are fixedly mounted at equal angles on the surface of one side of the gear ring 303.

[0033] During specific implementation, when the piston rod of the hydraulic cylinder 1 contracts, the sealing ring 306 scrapes the surface of the piston rod, and the motor 305 runs, driving the gear 304 to rotate. Through the meshing transmission of the gear 304 and the ring gear 303, the ring gear 303 drives the sealing ring 306 to rotate, and the dust and impurities scraped off by the sealing ring 306 accumulate on its surface. At this time, the scraper 4 rotates synchronously, scraping the accumulated dust and impurities onto the surface of the conical cover plate 307, allowing the dust and impurities to slide off, thereby scraping off the dust and impurities adhering to the surface of the piston rod before it is retracted into the cylinder body, and moving the scraped dust and impurities out along a specific direction to prevent the dust and impurities from re-attaching to the surface of the piston rod when the piston rod is extended, thereby improving the cleaning effect.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder with a protective structure, comprising a hydraulic cylinder (1), characterized in that: A protective assembly (2) is fixedly mounted on the outer surface of the hydraulic cylinder (1), and the protective assembly (2) comprises two fixed plates (201) symmetrically slidably mounted on the outer side of the hydraulic cylinder (1); an annular slide rail (202) is fixedly mounted on one side of the fixed plate (201); a connecting plate (204) is movably mounted on one side of the annular slide rail (202); a plurality of sliding rods (205) are fixedly mounted at equal angles between the two connecting plates (204); a plurality of elastic arc plates (206) are fixedly mounted at equal distances on the outer surface of the sliding rods (205); a protective net (208) is movably sleeved on the outer sides of the plurality of elastic arc plates (206); and a cleaning assembly (3) is fixedly mounted on the other side of the fixed plate (201) at the upper end.

2. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A plurality of first sliders (203) aligned with the annular slide rail (202) are fixedly mounted at equal angles on the other side surface of the connecting plate (204), and a plurality of second sliders (209) slidably fitted with the annular slide rail (202) are fixedly mounted at equal angles on the other side surface of the connecting plate (204).

3. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: An arc-shaped reinforcement plate (207) is symmetrically fixedly mounted on the inner surface of the elastic arc-shaped plate (206).

4. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: A plurality of limiting holes (101) are provided at equal angles on the upper end of the outer surface of the hydraulic cylinder (1); a plurality of threaded sleeves (308) are fixedly installed at equal angles on the other side surface of one of the fixing plates (201); a bolt (309) is screwed in and connected to the threaded sleeve (308); the bolt (309) passes through the threaded sleeve (308) and is movably connected to the limiting hole (101).

5. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: The cleaning assembly (3) comprises a plurality of support rods (301) fixedly mounted on the other side surface of the fixed plate (201), a mounting frame (302) fixedly mounted between the support rods (301), and a conical cover plate (307) fixedly mounted on the outer surface of the mounting frame (302).

6. The hydraulic cylinder with a protective structure according to claim 5, characterized in that: A gear ring (303) is rotatably connected inside the installation frame (302), and a gear (304) meshing with the gear ring (303) is rotatably connected inside the installation frame (302). A motor (305) is fixedly mounted on one side surface of the installation frame (302), and an output end of the motor (305) passes through the installation frame (302) and is fixedly connected to the gear (304).

7. The hydraulic cylinder with a protective structure according to claim 6, characterized in that: A sealing ring (306) is movably embedded in the inner surface of the gear ring (303), and a plurality of scrapers (4) are fixedly mounted at equal angles on one side surface of the gear ring (303).

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