Anti-collision hydraulic oil cylinder

Abstract

The utility model relates to the technical field of anti-collision hydraulic oil cylinders, and discloses an anti-collision hydraulic oil cylinder which comprises an oil cylinder and an anti-collision mechanism, the anti-collision mechanism comprises two sets of fixing rings and fixing rings, the two sets of fixing rings are connected with connecting pieces through connecting plates, the connecting plates are connected with fastening bolts through threaded holes, and the fixing rings are connected with the oil cylinder. Through the arranged anti-collision mechanism, two sets of fixing rings can be connected through a connecting piece, mounting and dismounting of the anti-collision mechanism are facilitated, when accidental collision occurs, a sliding block on an arc-shaped flexible piece can slide in a sliding groove, and by means of the specific hardness attribute of the arc-shaped flexible piece and the unique action mechanism of a flexible column, the anti-collision mechanism can be used for preventing collision. A set of efficient impact force weakening system is formed, strong impact force generated by impact is gradually dispersed and digested, the hydraulic oil cylinder is protected, the damage risk possibly caused by impact to the hydraulic oil cylinder is effectively reduced, the service life of the hydraulic oil cylinder is prolonged, and stable operation of the whole equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti -impact hydraulic oil cylinder, especially relates to a kind of anti -impact hydraulic oil cylinder. BACKGROUND

[0002] Hydraulic cylinder is a kind of hydraulic actuator, its main function is to convert hydraulic energy into mechanical energy, and it is usually used to realize linear reciprocating motion, but in some cases, it can also complete swing motion, simply speaking, it is like an energy conversion "tool", under the drive of hydraulic system, the pressure of oil is converted into mechanical linear motion or swing action.

[0003] Applicant has found that Chinese patent discloses "a kind of anti -impact hydraulic oil cylinder", and its publication (announcement) number is "CN217603049U", the patent mainly through spring seat is provided with first spring, cylinder cover one end is provided with limiting ring and second spring, through first spring and second spring, ensure that piston reaches the inner end or outer end, is buffered by spring, will not directly impact the inside of cylinder body and cylinder cover, to greatly improve the service life, but the patent cannot protect the outer wall of oil cylinder, which will result in that hydraulic oil cylinder directly bears huge impact force, greatly increases the risk of damage caused by impact to hydraulic oil cylinder, may cause hydraulic oil cylinder to appear deformation, damage, and then shorten its service life, for this purpose, we propose a kind of anti -impact hydraulic oil cylinder. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of anti -impact hydraulic oil cylinder to solve the problem that the outer wall of oil cylinder cannot be protected in the above background art, which will result in that hydraulic oil cylinder directly bears huge impact force, greatly increases the risk of damage caused by impact to hydraulic oil cylinder, may cause hydraulic oil cylinder to appear deformation, damage, and then shorten its service life.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anti -impact hydraulic oil cylinder, including oil cylinder and anti -impact mechanism, the anti -impact mechanism includes two groups of fixed ring and fixed ring, two groups of the fixed ring are connected with connecting piece by connecting plate, the connecting plate is connected with fastening bolt by screw hole, the fixed ring is connected with sliding block by the sliding groove on fixed rod, the sliding block is connected with flexible column by arc flexible member.

[0006] As a preferred scheme, the inside of the oil cylinder is provided with piston rod.

[0007] As a preferred scheme, the inner wall of the two groups of fixing rings is fixedly installed with a protective pad, the two groups of fixing rings are sleeved on the outer wall of the oil cylinder, the connecting plate is fixedly installed at the two ends of the fixing ring, the connecting piece is clamped at the connecting part of the two groups of fixing rings, the threaded hole penetrates the surface of the connecting plate and the connecting piece, and the fastening bolt is threadedly connected in the threaded hole.

[0008] As a preferred scheme, the fixed rod is fixedly installed on the fixed ring, the two ends of the two groups of fixed rods are fixedly installed on the connecting piece, the sliding groove is arranged in the interior of the fixed rod, the sliding block is slidingly connected in the interior of the sliding groove, the arc-shaped flexible piece is fixedly installed on the surface of the sliding block, one end of the flexible column is fixedly installed on the inner wall of the arc-shaped flexible piece, the surface of the fixed rod is fixedly installed with a mounting block, and the other end of the flexible column is fixedly installed on the surface of the mounting block.

[0009] As a preferred scheme, the upper side of the oil cylinder is provided with a cleaning mechanism, the cleaning mechanism comprises a mounting frame and a cleaning sleeve, the upper end of the mounting frame is fixedly installed with a plurality of insertion blocks in a circumferential array, and the bottom of the mounting frame is fixedly installed with a limiting claw.

[0010] As a preferred scheme, the outer wall of the cleaning sleeve is provided with an insertion groove, the insertion block is inserted in the interior of the insertion groove, and the inner wall of the cleaning sleeve is fixedly installed with cleaning cotton.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] 1. The anti-collision mechanism is connected by the connecting piece, the installation and dismounting of the anti-collision mechanism are facilitated, when accidental impact occurs, the sliding block on the arc-shaped flexible piece slides in the sliding groove, the specific hardness property of the arc-shaped flexible piece is utilized, the unique action mechanism of the flexible column is cooperated, an efficient impact intensity weakening system is formed, the strong impact force generated by impact is gradually dispersed and eliminated, the hydraulic oil cylinder is protected, the damage risk of the hydraulic oil cylinder caused by impact is effectively reduced, the service life is prolonged, and the stable operation of the whole equipment is ensured.

[0013] 2. The limiting claw can position and fix the mounting frame on the oil cylinder by the cleaning mechanism, the cleaning sleeve can be stably installed at the connecting part of the oil cylinder and the piston rod by the insertion block, the displacement or loosening of the cleaning sleeve during the working process is avoided, when the piston rod reciprocatingly extends and contracts, the cleaning cotton in the cleaning sleeve is in close contact with the surface of the piston rod, dust, impurities and other foreign matters adhered to the surface of the piston rod can be effectively removed in time, the foreign matters are avoided from being brought into the interior of the piston rod along with the movement of the piston rod, and the service life of the equipment is prolonged. DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a partial structure schematic view of the utility model;

[0016] Figure 3 It is a partial structure explosion view of the anti-collision mechanism of the utility model;

[0017] Figure 4 It is a partial structure schematic view of the anti-collision mechanism of the utility model;

[0018] Figure 5 It is a partial structure schematic view of the anti-collision mechanism of the utility model;

[0019] Figure 6 It is a partial structure schematic view of the cleaning mechanism of the utility model;

[0020] Figure 7 It is a partial structure schematic view of the cleaning mechanism of the utility model.

[0021] In the drawing: 1, oil cylinder; 2, piston rod; 3, anti-collision mechanism; 301, fixed ring; 302, protective pad; 303, connecting plate; 304, threaded hole; 305, connecting piece; 306, fastening bolt; 307, fixed ring; 308, fixed rod; 309, sliding groove; 310, mounting block; 311, flexible column; 312, sliding block; 313, arc-shaped flexible piece; 4, cleaning mechanism; 401, mounting frame; 402, plug-in block; 403, cleaning sleeve; 404, plug-in slot; 405, cleaning cotton; 406, limit claw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Embodiment one:

[0024] Please refer to the drawings of the utility model Figure 1 - the drawings of the utility model Figure 5The utility model provides an anti -collision hydraulic cylinder, including cylinder 1 and anti -collision mechanism 3, anti -collision mechanism 3 includes two groups of fixed ring 301 and fixed ring 307, two groups of fixed ring 301 are connected with connecting piece 305 through connecting plate 303, connecting plate 303 is connected with fastening bolt 306 through threaded hole 304, fixed ring 307 is connected with sliding block 312 through the sliding groove 309 on fixed rod 308, sliding block 312 is connected with flexible column 311 through arc flexible part 313, the inside of cylinder 1 is provided with piston rod 2, the inner wall of two groups of fixed ring 301 is fixedly installed with protective pad 302, two groups of fixed ring 301 are sleeved on the outer wall of cylinder 1, connecting plate 303 is fixedly installed at the both ends of fixed ring 301, connecting piece 305 is clamped at the connecting place of two groups of fixed ring 301, threaded hole 304 penetrates the surface of connecting plate 303 and connecting piece 305, fastening bolt 306 is screwly connected in threaded hole 304, fixed rod 308 is fixedly installed on fixed ring 307, wherein the both ends of two groups of fixed rod 308 are fixedly installed on connecting piece 305, sliding groove 309 is opened in the inside of fixed rod 308, sliding block 312 is slidingly connected in the inside of sliding groove 309, arc flexible part 313 is fixedly installed on the surface of sliding block 312, and one end of flexible column 311 is fixedly installed on the inner wall of arc flexible part 313, and the surface of fixed rod 308 is fixedly installed with mounting block 310, and the other end of flexible column 311 is fixedly installed on the surface of mounting block 310.

[0025] The number of fixed rods 308 is selected according to the size of the cylinder 1, wherein only two groups are fixedly connected with the fixed ring 301, and the rest are connected with the fixed ring 307, under normal conditions, the sliding blocks 312 at the lower end of the arc flexible part 313 are close, after being impacted by the outside, the arc flexible part 313 is deformed, so that the sliding blocks 312 slide along the sliding grooves 309, and the impact force is well resolved by extruding the flexible columns 311, and the cylinder 1 is protected.

[0026] Specifically, the two groups of fixed rings 301 can be connected through the connecting pieces 305, facilitating the installation and dismounting of the anti-collision mechanism 3, when impacted, the sliding blocks 312 on the arc flexible part 313 slide in the sliding grooves 309 and cooperate with the flexible columns 311 according to their hardness to weaken the impact force, and the hydraulic cylinder 1 is protected.

[0027] Embodiment two:

[0028] Please refer to the attached Figure 1 , attached Figure 6 and attached Figure 7And on the basis of embodiment one, further get, the upper of the oil cylinder 1 is provided with a cleaning mechanism 4, the cleaning mechanism 4 includes mounting bracket 401 and cleaning sleeve 403, the upper end of mounting bracket 401 is fixedly installed with the plug-in block 402 in the circumferential array, the bottom of mounting bracket 401 is fixedly installed with the limit claw 406, the limit claw 406 is in contact with the bottom of the upper end of the oil cylinder 1, the outer wall of cleaning sleeve 403 is provided with plug-in slot 404, the plug-in block 402 is inserted in the inside of plug-in slot 404, the inner wall of cleaning sleeve 403 is fixedly installed with cleaning cotton 405.

[0029] The limit claw 406 is flexible, and can be appropriately deformed by external force, so that it can be clamped on the oil cylinder 1, and the cleaning sleeve 403 is inserted on the plug-in block 402 through the plug-in slot 404, so that the outer wall of the piston rod 2 can be wiped, and the cleaning sleeve 403 is convenient to take down and clean.

[0030] Specifically, the mounting bracket 401 can be fixed on the oil cylinder 1 by the limit claw 406, and the cleaning sleeve 403 can be fixed at the connection between the oil cylinder 1 and the piston rod 2 by the plug-in block 402, so that the piston rod 2 can be cleaned by the cleaning cotton 405 when the piston rod 2 is extended and retracted, and damage caused by external foreign matters entering the piston rod 2 is avoided.

[0031] The utility model discloses a kind of hydraulic oil cylinders of anti-collision, first, mounting bracket 401 is placed at the connection between oil cylinder 1 and piston rod 2, mounting bracket 401 is fixed on oil cylinder 1 by limit claw 406, plug-in slot 404 on cleaning sleeve 403 is inserted into plug-in block 402, fixed ring 301 is sleeved on the outer wall of oil cylinder 1, then connecting piece 305 is clamped in the gap between two groups of fixed ring 301, and fastening bolt 306 is tightened in the inside of screw hole 304, so that two groups of fixed ring 301 are fixed on the outer wall of oil cylinder 1, when being impacted by external force, arc flexible member 313 is deformed, so that sliding block 312 is slid along sliding groove 309, and at the same time, flexible column 311 is also deformed, impact force received is weakened, foreign matters on the outer wall of piston rod 2 can be wiped by cleaning cotton 405 inside cleaning sleeve 403 when piston rod 2 is extended and retracted.

[0032] Finally, it should be pointed out that: the above-mentioned only for preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydraulic cylinder for impact protection, comprising a cylinder (1) and an anti-collision mechanism (3), characterized in that: The anti-collision mechanism (3) includes two sets of fixing rings (301) and fixing rings (307). The two sets of fixing rings (301) are connected to a connector (305) through a connecting plate (303). The connecting plate (303) is connected to a fastening bolt (306) through a threaded hole (304). The fixing ring (307) is connected to a sliding block (312) through a sliding groove (309) on a fixing rod (308). The sliding block (312) is connected to a flexible column (311) through an arc-shaped flexible component (313).

2. The anti-impact hydraulic cylinder according to claim 1, characterized in that: The cylinder (1) is equipped with a piston rod (2).

3. The anti-impact hydraulic cylinder according to claim 2, characterized in that: The inner walls of both sets of fixing rings (301) are fixedly equipped with protective pads (302). The two sets of fixing rings (301) are sleeved on the outer wall of the oil cylinder (1). The connecting plate (303) is fixedly installed at both ends of the fixing rings (301). The connecting piece (305) is snapped into the connection of the two sets of fixing rings (301). The threaded hole (304) penetrates the surface of the connecting plate (303) and the connecting piece (305). The fastening bolt (306) is threaded into the inside of the threaded hole (304).

4. The anti-impact hydraulic cylinder according to claim 3, characterized in that: The fixing rod (308) is fixedly installed on the fixing ring (307), wherein the two ends of the two sets of fixing rods (308) are fixedly installed on the connector (305), the sliding groove (309) is opened inside the fixing rod (308), the sliding block (312) is slidably connected inside the sliding groove (309), the arc-shaped flexible member (313) is fixedly installed on the surface of the sliding block (312), one end of the flexible column (311) is fixedly installed on the inner wall of the arc-shaped flexible member (313), the surface of the fixing rod (308) is fixedly installed with the mounting block (310), and the other end of the flexible column (311) is fixedly installed on the surface of the mounting block (310).

5. The anti-impact hydraulic cylinder according to claim 2, characterized in that: A cleaning mechanism (4) is provided above the oil cylinder (1). The cleaning mechanism (4) includes a mounting bracket (401) and a cleaning sleeve (403). The upper end of the mounting bracket (401) is fixedly mounted with plug-in blocks (402) in a circumferential array. The bottom of the mounting bracket (401) is fixedly mounted with a limiting claw (406), and the limiting claw (406) abuts against the bottom of the upper end of the oil cylinder (1).

6. The anti-impact hydraulic cylinder according to claim 5, characterized in that: The outer wall of the cleaning sleeve (403) is provided with a insertion groove (404), the insertion block (402) is inserted into the inside of the insertion groove (404), and a cleaning cotton (405) is fixedly installed on the inner wall of the cleaning sleeve (403).

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